# PillFYI > Pill identification and drug reference database. Comprehensive drug information sourced from DailyMed (NLM), openFDA, RxNorm, MFDS (Korean FDA), and DDinter. Drug classes (WHO ATC), conditions, manufacturers, side effects, drug interactions, glossary terms, guides, and interactive tools in 15 languages. ## Data Scope - Drugs with generic names, brand names, active/inactive ingredients - Drug types: prescription, OTC, behind-the-counter - Dosage forms: tablet, capsule, liquid, injection, topical, inhaler, patch, suppository, drops - Drug classes based on WHO ATC classification (hierarchical) - Medical conditions/indications with ICD-10 codes and body systems - Pharmaceutical manufacturers with country and website - Side effects/adverse reactions by body system - Drug-drug interactions with severity (major/moderate/minor) and clinical details - Drug-side effect relationships with frequency data (very common to very rare) - Drug-condition relationships (FDA/MFDS approved and off-label) - External IDs: DailyMed SET ID, NDC codes, RxCUI, MFDS item sequence - SVG pill identification cards - Glossary terms across pharmaceutical categories - Medication guides in thematic series - Interactive tools (interaction checker, etc.) ## URL Patterns - Append `.md` to any URL for plain-text markdown format. - i18n: URL prefix `/{lang}` for non-English (ko, ja, zh-hans, es, fr, de, pt, ru, vi, tr, ar, hi, th, id). - `/drugs/` — Drug directory (paginated, filterable) (e.g. `/drugs/`) - `/drug/{slug}/` — Drug detail with clinical info, ingredients, interactions (e.g. `/drug/metformin/`) - `/drug/{slug}/interactions/` — Drug interaction list for a specific drug (e.g. `/drug/metformin/interactions/`) - `/drug/{slug}/side-effects/` — Side effects for a specific drug (e.g. `/drug/metformin/side-effects/`) - `/classes/` — WHO ATC drug classes list (e.g. `/classes/`) - `/class/{slug}/` — Drug class detail with member drugs (e.g. `/class/antidiabetics/`) - `/conditions/` — Medical conditions list (e.g. `/conditions/`) - `/condition/{slug}/` — Condition detail with approved drugs (e.g. `/condition/diabetes/`) - `/manufacturers/` — Pharmaceutical manufacturers list (e.g. `/manufacturers/`) - `/manufacturer/{slug}/` — Manufacturer profile with drugs (e.g. `/manufacturer/pfizer/`) - `/side-effects/` — Side effects list (e.g. `/side-effects/`) - `/side-effect/{slug}/` — Side effect detail (e.g. `/side-effect/headache/`) - `/interaction/{slug_a}/{slug_b}/` — Drug-drug interaction detail (e.g. `/interaction/metformin/glipizide/`) - `/interaction-checker/` — Interactive drug interaction checker tool (e.g. `/interaction-checker/`) - `/glossary/` — Pharmaceutical glossary (e.g. `/glossary/`) - `/glossary/{slug}/` — Glossary term definition (e.g. `/glossary/bioavailability/`) - `/tools/` — Interactive tools (e.g. `/tools/`) - `/tools/{slug}/` — Tool page (e.g. `/tools/interaction-checker/`) - `/guides/` — Medication guide series (e.g. `/guides/`) - `/guides/{series_slug}/` — Guide series (e.g. `/guides/medication-safety/`) - `/guides/{series_slug}/{guide_slug}/` — Guide article (e.g. `/guides/medication-safety/drug-interactions/`) - `/timeline/` — Drug approval timeline (e.g. `/timeline/`) - `/timeline/{year}/` — Timeline by year (e.g. `/timeline/2024/`) - `/on-this-day/` — On this day in pharma history (e.g. `/on-this-day/`) - `/on-this-day/{month-day}/` — On this day detail (e.g. `/on-this-day/01-01/`) - `/rankings/` — Drug rankings index (e.g. `/rankings/`) - `/rankings/{metric}/` — Drug ranking by metric (e.g. `/rankings/most-prescribed/`) - `/search/` — Search drugs, conditions, side effects (e.g. `/search/?q=metformin`) - `/gallery/` — Pill identification gallery (e.g. `/gallery/`) ## Browse Drugs - [All Drugs](https://pillfyi.com/drugs/) - [Drug Classes (ATC)](https://pillfyi.com/classes/) - [Medical Conditions](https://pillfyi.com/conditions/) - [Manufacturers](https://pillfyi.com/manufacturers/) - [Side Effects](https://pillfyi.com/side-effects/) ## Drug Interactions - [Interaction Checker](https://pillfyi.com/interaction-checker/) ## Guides & Education - [All Guides](https://pillfyi.com/guides/) - [Glossary](https://pillfyi.com/glossary/) ## Timeline - [Drug Approval Timeline](https://pillfyi.com/timeline/) - [On This Day](https://pillfyi.com/on-this-day/) ## Interactive Tools - [All Tools](https://pillfyi.com/tools/) - [Rankings](https://pillfyi.com/rankings/) - [Pill Gallery](https://pillfyi.com/gallery/) ## Embed Widget - [PillFYI Widget Docs](https://widget.pillfyi.com) - [pillfyi-embed on npm](https://www.npmjs.com/package/pillfyi-embed) - [pillfyi-embed on GitHub](https://github.com/fyipedia/pillfyi-embed) ## REST API Free REST API. No authentication required. JSON responses. CORS enabled. | Method | Endpoint | Description | |--------|----------|-------------| | GET | `/api/v1/drugs/` | List all drugs (paginated) | | GET | `/api/v1/drugs/{id}/` | Drug detail | | GET | `/api/v1/drug-classes/` | List ATC drug classes | | GET | `/api/v1/drug-classes/{id}/` | Drug class detail | | GET | `/api/v1/conditions/` | List medical conditions | | GET | `/api/v1/conditions/{id}/` | Condition detail | | GET | `/api/v1/manufacturers/` | List manufacturers | | GET | `/api/v1/manufacturers/{id}/` | Manufacturer detail | | GET | `/api/v1/side-effects/` | List side effects | | GET | `/api/v1/side-effects/{id}/` | Side effect detail | | GET | `/api/v1/interactions/` | Drug interactions | | GET | `/api/v1/glossary/` | Glossary terms | | GET | `/api/v1/glossary/{id}/` | Glossary term detail | | GET | `/api/v1/guides/` | Guide articles | | GET | `/api/v1/guides/{id}/` | Guide detail | | GET | `/api/v1/tools/` | Interactive tools | | GET | `/api/v1/faqs/` | FAQs | | GET | `/api/v1/search/?q={query}` | Search across drugs, conditions, side effects | | GET | `/api/v1/stats/` | Site statistics | ```bash curl -s "https://pillfyi.com/api/v1/drugs/?limit=5" ``` [API Docs](https://pillfyi.com/developers/) ## Health FYI Family Part of [FYIPedia](https://fyipedia.com) developer tools ecosystem. - [AnatomyFYI](https://anatomyfyi.com) — 14,692 anatomical structures, systems, organs - [PillFYI](https://pillfyi.com) — Pill identification, FDA/MFDS drug database - [DrugFYI](https://drugfyi.com) — Drug interactions, pharmacology, side effects - [NutriFYI](https://nutrifyi.com) — Nutrition data, food composition, dietary analysis ## Images (CDN) OG images at https://cdn.pillfyi.com/og/ - https://cdn.pillfyi.com/og/homepage.png ## Medical Conditions - [Acne Vulgaris](https://pillfyi.com/condition/acne-vulgaris/) - [Acute Bronchitis](https://pillfyi.com/condition/acute-bronchitis/) - [Addison Disease](https://pillfyi.com/condition/addison-disease/) - [ADHD](https://pillfyi.com/condition/adhd/) - [Age-Related Macular Degeneration](https://pillfyi.com/condition/age-related-macular-degeneration/) - [Allergic Rhinitis](https://pillfyi.com/condition/allergic-rhinitis/) - [Alzheimer Disease](https://pillfyi.com/condition/alzheimer-disease/) - [Angina Pectoris](https://pillfyi.com/condition/angina-pectoris/) - [Ankylosing Spondylitis](https://pillfyi.com/condition/ankylosing-spondylitis/) - [Anxiety Disorders](https://pillfyi.com/condition/anxiety-disorders/) - [Asthma](https://pillfyi.com/condition/asthma/) - [Atopic Dermatitis](https://pillfyi.com/condition/atopic-dermatitis/) - [Atrial Fibrillation](https://pillfyi.com/condition/atrial-fibrillation/) - [Benign Prostatic Hyperplasia](https://pillfyi.com/condition/benign-prostatic-hyperplasia/) - [Bipolar Disorder](https://pillfyi.com/condition/bipolar-disorder/) - [Bladder Cancer](https://pillfyi.com/condition/bladder-cancer/) - [Breast Cancer](https://pillfyi.com/condition/breast-cancer/) - [Celiac-Associated Dermatitis Herpetiformis](https://pillfyi.com/condition/dermatitis-herpetiformis/) - [Celiac Disease](https://pillfyi.com/condition/celiac-disease/) - [Chronic Kidney Disease](https://pillfyi.com/condition/chronic-kidney-disease/) - [Chronic Obstructive Pulmonary Disease](https://pillfyi.com/condition/copd/) - [Chronic Pain](https://pillfyi.com/condition/chronic-pain/) - [Colorectal Cancer](https://pillfyi.com/condition/colorectal-cancer/) - [Coronary Artery Disease](https://pillfyi.com/condition/coronary-artery-disease/) - [COVID-19](https://pillfyi.com/condition/covid-19/) - [Crohn Disease](https://pillfyi.com/condition/crohn-disease/) - [Cushing Syndrome](https://pillfyi.com/condition/cushing-syndrome/) - [Deep Vein Thrombosis](https://pillfyi.com/condition/deep-vein-thrombosis/) - [Depression](https://pillfyi.com/condition/depression/) - [Eating Disorders](https://pillfyi.com/condition/eating-disorders/) - [Eczema](https://pillfyi.com/condition/eczema/) - [Endometriosis](https://pillfyi.com/condition/endometriosis/) - [Epilepsy](https://pillfyi.com/condition/epilepsy/) - [Erectile Dysfunction](https://pillfyi.com/condition/erectile-dysfunction/) - [Fibromyalgia](https://pillfyi.com/condition/fibromyalgia/) - [Gastroesophageal Reflux Disease](https://pillfyi.com/condition/gerd/) - [Generalized Anxiety Disorder](https://pillfyi.com/condition/generalized-anxiety-disorder/) - [Glaucoma](https://pillfyi.com/condition/glaucoma/) - [Gout](https://pillfyi.com/condition/gout/) - [Heart Failure](https://pillfyi.com/condition/heart-failure/) - [Hemophilia](https://pillfyi.com/condition/hemophilia/) - [Hepatitis B](https://pillfyi.com/condition/hepatitis-b/) - [Hepatitis C](https://pillfyi.com/condition/hepatitis-c/) - [HIV/AIDS](https://pillfyi.com/condition/hiv-aids/) - [Hyperlipidemia](https://pillfyi.com/condition/hyperlipidemia/) - [Hypertension](https://pillfyi.com/condition/hypertension/) - [Hypertensive Heart Disease](https://pillfyi.com/condition/hypertensive-heart-disease/) - [Hyperthyroidism](https://pillfyi.com/condition/hyperthyroidism/) - [Hypothyroidism](https://pillfyi.com/condition/hypothyroidism/) - [Influenza](https://pillfyi.com/condition/influenza/) - [Insomnia](https://pillfyi.com/condition/insomnia/) - [Iron Deficiency Anemia](https://pillfyi.com/condition/iron-deficiency-anemia/) - [Irritable Bowel Syndrome](https://pillfyi.com/condition/irritable-bowel-syndrome/) - [Leukemia](https://pillfyi.com/condition/leukemia/) - [Lung Cancer](https://pillfyi.com/condition/lung-cancer/) - [Lymphoma](https://pillfyi.com/condition/lymphoma/) - [Malaria](https://pillfyi.com/condition/malaria/) - [Melanoma](https://pillfyi.com/condition/melanoma/) - [Migraine](https://pillfyi.com/condition/migraine/) - [Multiple Sclerosis](https://pillfyi.com/condition/multiple-sclerosis/) - [Myasthenia Gravis](https://pillfyi.com/condition/myasthenia-gravis/) - [Neuropathic Pain](https://pillfyi.com/condition/neuropathic-pain/) - [Obesity](https://pillfyi.com/condition/obesity/) - [Obsessive-Compulsive Disorder](https://pillfyi.com/condition/obsessive-compulsive-disorder/) - [Osteoarthritis](https://pillfyi.com/condition/osteoarthritis/) - [Osteoporosis](https://pillfyi.com/condition/osteoporosis/) - [Overactive Bladder](https://pillfyi.com/condition/overactive-bladder/) - [Pancreatic Cancer](https://pillfyi.com/condition/pancreatic-cancer/) - [Panic Disorder](https://pillfyi.com/condition/panic-disorder/) - [Parkinson Disease](https://pillfyi.com/condition/parkinson-disease/) - [Peptic Ulcer Disease](https://pillfyi.com/condition/peptic-ulcer-disease/) - [Peripheral Artery Disease](https://pillfyi.com/condition/peripheral-artery-disease/) - [Pneumonia](https://pillfyi.com/condition/pneumonia/) - [Polycystic Ovary Syndrome](https://pillfyi.com/condition/polycystic-ovary-syndrome/) - [Post-Traumatic Stress Disorder](https://pillfyi.com/condition/ptsd/) - [Prostate Cancer](https://pillfyi.com/condition/prostate-cancer/) - [Psoriasis](https://pillfyi.com/condition/psoriasis/) - [Psoriatic Arthritis](https://pillfyi.com/condition/psoriatic-arthritis/) - [Pulmonary Embolism](https://pillfyi.com/condition/pulmonary-embolism/) - [Pulmonary Fibrosis](https://pillfyi.com/condition/pulmonary-fibrosis/) - [Restless Legs Syndrome](https://pillfyi.com/condition/restless-legs-syndrome/) - [Rheumatoid Arthritis](https://pillfyi.com/condition/rheumatoid-arthritis/) - [Rosacea](https://pillfyi.com/condition/rosacea/) - [Schizophrenia](https://pillfyi.com/condition/schizophrenia/) - [Scleroderma](https://pillfyi.com/condition/scleroderma/) - [Sepsis](https://pillfyi.com/condition/sepsis/) - [Sickle Cell Disease](https://pillfyi.com/condition/sickle-cell-disease/) - [Sjogren Syndrome](https://pillfyi.com/condition/sjogren-syndrome/) - [Sleep Apnea](https://pillfyi.com/condition/sleep-apnea/) - [Social Anxiety Disorder](https://pillfyi.com/condition/social-anxiety-disorder/) - [Stroke](https://pillfyi.com/condition/stroke/) - [Systemic Lupus Erythematosus](https://pillfyi.com/condition/systemic-lupus-erythematosus/) - [Thrombocytopenia](https://pillfyi.com/condition/thrombocytopenia/) - [Trigeminal Neuralgia](https://pillfyi.com/condition/trigeminal-neuralgia/) - [Tuberculosis](https://pillfyi.com/condition/tuberculosis/) - [Type 1 Diabetes](https://pillfyi.com/condition/type-1-diabetes/) - [Type 2 Diabetes](https://pillfyi.com/condition/type-2-diabetes/) - [Ulcerative Colitis](https://pillfyi.com/condition/ulcerative-colitis/) - [Urinary Tract Infection](https://pillfyi.com/condition/urinary-tract-infection/) - [Vasculitis](https://pillfyi.com/condition/vasculitis/) ## Manufacturers (Top 50) - [60 Degrees Pharmaceuticals, INC.](https://pillfyi.com/manufacturer/60-degrees-pharmaceuticals-inc/) - [9055-7588 Quebec Inc. (Attitude)](https://pillfyi.com/manufacturer/9055-7588-quebec-inc-attitude/) - [A2A Integrated Pharmaceuticals](https://pillfyi.com/manufacturer/a2a-integrated-pharmaceuticals/) - [AAA PHARMACEUTICAL, INC.](https://pillfyi.com/manufacturer/aaa-pharmaceutical-inc/) - [ABBE Laboratories, Inc.](https://pillfyi.com/manufacturer/abbe-laboratories-inc/) - [AbbVie Inc.](https://pillfyi.com/manufacturer/abbvie-inc/) - [Able C&C Co., Ltd.](https://pillfyi.com/manufacturer/able-cc-co-ltd/) - [Acacia Pharma, Ltd.](https://pillfyi.com/manufacturer/acacia-pharma-ltd/) - [Acadia Pharmaceuticals Inc.](https://pillfyi.com/manufacturer/acadia-pharmaceuticals-inc/) - [Access Business Group LLC](https://pillfyi.com/manufacturer/access-business-group-llc/) - [Accord BioPharma Inc.](https://pillfyi.com/manufacturer/accord-biopharma-inc/) - [Accord Healthcare Inc.](https://pillfyi.com/manufacturer/accord-healthcare-inc/) - [Acella Pharmaceuticals, LLC](https://pillfyi.com/manufacturer/acella-pharmaceuticals-llc/) - [AcelRx Pharmaceuticals, Inc.](https://pillfyi.com/manufacturer/acelrx-pharmaceuticals-inc/) - [ACE PHARMACEUTICAL CO LTD](https://pillfyi.com/manufacturer/ace-pharmaceutical-co-ltd/) - [ACERTIS PHARMACEUTICALS, LLC](https://pillfyi.com/manufacturer/acertis-pharmaceuticals-llc/) - [Achaogen, Inc.](https://pillfyi.com/manufacturer/achaogen-inc/) - [ACI Healthcare USA, Inc](https://pillfyi.com/manufacturer/aci-healthcare-usa-inc/) - [Acme United Corporation](https://pillfyi.com/manufacturer/acme-united-corporation/) - [Acne Free LLC](https://pillfyi.com/manufacturer/acne-free-llc/) - [Acrotech Biopharma Inc](https://pillfyi.com/manufacturer/acrotech-biopharma-inc/) - [Actavis Pharma, Inc.](https://pillfyi.com/manufacturer/actavis-pharma-inc/) - [Actelion Pharmaceuticals US, Inc.](https://pillfyi.com/manufacturer/actelion-pharmaceuticals-us-inc/) - [ACTIPHARMA, LLC](https://pillfyi.com/manufacturer/actipharma-llc/) - [ADC Therapeutics America, Inc.](https://pillfyi.com/manufacturer/adc-therapeutics-america-inc/) - [ADMA Biologics, Inc.](https://pillfyi.com/manufacturer/adma-biologics-inc/) - [Advagen Pharma Ltd.,](https://pillfyi.com/manufacturer/advagen-pharma-ltd/) - [Advanced Accelerator Applications USA, Inc](https://pillfyi.com/manufacturer/advanced-accelerator-applications-usa-inc/) - [Advanced Pharmaceutical Services, Inc. Dba Affordable Quality Pharmaceuticals](https://pillfyi.com/manufacturer/advanced-pharmaceutical-services-inc-dba-affordable-quality-pharmaceuticals/) - [Advanced Rx LLC](https://pillfyi.com/manufacturer/advanced-rx-llc/) - [Advanced Rx of Tennessee, LLC](https://pillfyi.com/manufacturer/advanced-rx-of-tennessee-llc/) - [Advanced Rx Pharmacy of Tennessee, LLC](https://pillfyi.com/manufacturer/advanced-rx-pharmacy-of-tennessee-llc/) - [Advance Pharmaceutical Inc.](https://pillfyi.com/manufacturer/advance-pharmaceutical-inc/) - [Advantice Health, LLC.](https://pillfyi.com/manufacturer/advantice-health-llc/) - [Advanz Pharma (US) Corp.](https://pillfyi.com/manufacturer/advanz-pharma-us-corp/) - [Aekyung Industrial Co., Ltd.](https://pillfyi.com/manufacturer/aekyung-industrial-co-ltd/) - [Affordable Pharmaceuticals, LLC](https://pillfyi.com/manufacturer/affordable-pharmaceuticals-llc/) - [AG Essence](https://pillfyi.com/manufacturer/ag-essence/) - [Agios Pharmaceuticals, Inc.](https://pillfyi.com/manufacturer/agios-pharmaceuticals-inc/) - [AGL Inhalation Therapy Co.](https://pillfyi.com/manufacturer/agl-inhalation-therapy-co/) - [Agricultural Corporation YUBIMUHUAN CO Ltd](https://pillfyi.com/manufacturer/agricultural-corporation-yubimuhuan-co-ltd/) - [Aidance Scientific, Inc., DBA Aidance Skincare & Topical Solutions](https://pillfyi.com/manufacturer/aidance-scientific-inc-dba-aidance-skincare-topical-solutions/) - [Aimmune Therapeutics, Inc.](https://pillfyi.com/manufacturer/aimmune-therapeutics-inc/) - [Airgas Therapeutics, LLC](https://pillfyi.com/manufacturer/airgas-therapeutics-llc/) - [Airgas Usa, LLC](https://pillfyi.com/manufacturer/airgas-usa-llc/) - [Airtec Gases, LLC](https://pillfyi.com/manufacturer/airtec-gases-llc/) - [Ajanta Pharma USA Inc.](https://pillfyi.com/manufacturer/ajanta-pharma-usa-inc/) - [Akebia Therapeutics, Inc.](https://pillfyi.com/manufacturer/akebia-therapeutics-inc/) - [Akeso Biopharma, Co., Ltd](https://pillfyi.com/manufacturer/akeso-biopharma-co-ltd/) - [Akron Pharma Inc.](https://pillfyi.com/manufacturer/akron-pharma-inc/) ## Pharmaceutical Glossary - [Active Ingredient (Drug Classification)](https://pillfyi.com/glossary/active-ingredient/) - [Adverse Drug Reaction (Drug Safety & Regulation)](https://pillfyi.com/glossary/adverse-drug-reaction/) - [Agonist (Pharmacodynamics)](https://pillfyi.com/glossary/agonist/) - [Antagonism (Drug Interaction) (Drug Interactions)](https://pillfyi.com/glossary/antagonism-interaction/) - [Antagonist (Pharmacodynamics)](https://pillfyi.com/glossary/antagonist/) - [Area Under the Curve (Pharmacokinetics)](https://pillfyi.com/glossary/area-under-the-curve/) - [ATC Classification (Drug Classification)](https://pillfyi.com/glossary/atc-classification/) - [Bioavailability (Pharmacokinetics)](https://pillfyi.com/glossary/bioavailability/) - [Biologic Drug (Drug Classification)](https://pillfyi.com/glossary/biologic-drug/) - [Biosimilar (Drug Classification)](https://pillfyi.com/glossary/biosimilar/) - [Black Box Warning (Drug Safety & Regulation)](https://pillfyi.com/glossary/black-box-warning/) - [Brand Name Drug (Drug Classification)](https://pillfyi.com/glossary/brand-name-drug/) - [Clearance (Pharmacokinetics)](https://pillfyi.com/glossary/clearance/) - [Clinical Trial Phases (Clinical Pharmacology)](https://pillfyi.com/glossary/clinical-trial-phases/) - [Combination Drug (Drug Classification)](https://pillfyi.com/glossary/combination-drug/) - [Cytochrome P450 (Drug Interactions)](https://pillfyi.com/glossary/cytochrome-p450/) - [DEA Schedule (Drug Safety & Regulation)](https://pillfyi.com/glossary/dea-schedule/) - [Dose-Response Curve (Pharmacodynamics)](https://pillfyi.com/glossary/dose-response-curve/) - [Double-Blind Study (Clinical Pharmacology)](https://pillfyi.com/glossary/double-blind-study/) - [Drug Class (Drug Classification)](https://pillfyi.com/glossary/drug-class-term/) - [Drug-Food Interaction (Drug Interactions)](https://pillfyi.com/glossary/drug-food-interaction/) - [Drug Holiday (Prescription & Dosing)](https://pillfyi.com/glossary/drug-holiday/) - [Drug Recall (Drug Safety & Regulation)](https://pillfyi.com/glossary/drug-recall/) - [ED50 (Pharmacodynamics)](https://pillfyi.com/glossary/ed50/) - [Efficacy (Pharmacodynamics)](https://pillfyi.com/glossary/efficacy/) - [Enteric Coating (Drug Formulations & Delivery)](https://pillfyi.com/glossary/enteric-coating/) - [Enzyme Induction (Drug Interactions)](https://pillfyi.com/glossary/enzyme-induction/) - [Enzyme Inhibition (Drug Interactions)](https://pillfyi.com/glossary/enzyme-inhibition/) - [Excipient (Drug Formulations & Delivery)](https://pillfyi.com/glossary/excipient/) - [Extended Release (Drug Formulations & Delivery)](https://pillfyi.com/glossary/extended-release/) - [FDA Pregnancy Category (Drug Safety & Regulation)](https://pillfyi.com/glossary/fda-pregnancy-category/) - [First-Pass Effect (Pharmacokinetics)](https://pillfyi.com/glossary/first-pass-effect/) - [Generic Drug (Drug Classification)](https://pillfyi.com/glossary/generic-drug/) - [Generic Equivalence (Clinical Pharmacology)](https://pillfyi.com/glossary/generic-equivalence/) - [Grapefruit Effect (Drug Interactions)](https://pillfyi.com/glossary/grapefruit-effect/) - [Half-Life (Pharmacokinetics)](https://pillfyi.com/glossary/half-life/) - [Hepatic Dosing Adjustment (Prescription & Dosing)](https://pillfyi.com/glossary/hepatic-dosing-adjustment/) - [Immediate Release (Drug Formulations & Delivery)](https://pillfyi.com/glossary/immediate-release/) - [Inactive Ingredient (Drug Classification)](https://pillfyi.com/glossary/inactive-ingredient/) - [Intention-to-Treat Analysis (Clinical Pharmacology)](https://pillfyi.com/glossary/intention-to-treat/) - [Intramuscular (Drug Formulations & Delivery)](https://pillfyi.com/glossary/intramuscular/) - [Intravenous (Drug Formulations & Delivery)](https://pillfyi.com/glossary/intravenous/) - [LD50 (Pharmacodynamics)](https://pillfyi.com/glossary/ld50/) - [Loading Dose (Prescription & Dosing)](https://pillfyi.com/glossary/loading-dose/) - [Maintenance Dose (Prescription & Dosing)](https://pillfyi.com/glossary/maintenance-dose/) - [Medication Adherence (Prescription & Dosing)](https://pillfyi.com/glossary/medication-adherence/) - [New Drug Application (Drug Safety & Regulation)](https://pillfyi.com/glossary/new-drug-application/) - [Number Needed to Harm (Clinical Pharmacology)](https://pillfyi.com/glossary/number-needed-to-harm/) - [Number Needed to Treat (Clinical Pharmacology)](https://pillfyi.com/glossary/number-needed-to-treat/) - [Off-Label Use (Drug Safety & Regulation)](https://pillfyi.com/glossary/off-label-use/) - [Orphan Drug (Drug Safety & Regulation)](https://pillfyi.com/glossary/orphan-drug/) - [Over-the-Counter (Drug Safety & Regulation)](https://pillfyi.com/glossary/over-the-counter/) - [Peak Plasma Concentration (Pharmacokinetics)](https://pillfyi.com/glossary/peak-plasma-concentration/) - [Pharmacovigilance (Clinical Pharmacology)](https://pillfyi.com/glossary/pharmacovigilance/) - [Placebo Effect (Clinical Pharmacology)](https://pillfyi.com/glossary/placebo-effect/) - [Polypharmacy (Drug Interactions)](https://pillfyi.com/glossary/polypharmacy/) - [Potency (Pharmacodynamics)](https://pillfyi.com/glossary/potency/) - [Prescription Drug (Drug Safety & Regulation)](https://pillfyi.com/glossary/prescription-drug/) - [PRN Dosing (Prescription & Dosing)](https://pillfyi.com/glossary/prn-dosing/) - [Prodrug (Drug Formulations & Delivery)](https://pillfyi.com/glossary/prodrug/) - [Protein Binding (Pharmacokinetics)](https://pillfyi.com/glossary/protein-binding/) - [QT Prolongation (Drug Interactions)](https://pillfyi.com/glossary/qt-prolongation-term/) - [Randomized Controlled Trial (Clinical Pharmacology)](https://pillfyi.com/glossary/randomized-controlled-trial/) - [Receptor Selectivity (Pharmacodynamics)](https://pillfyi.com/glossary/receptor-selectivity/) - [Renal Dosing Adjustment (Prescription & Dosing)](https://pillfyi.com/glossary/renal-dosing-adjustment/) - [Serotonin Syndrome (Drug Interactions)](https://pillfyi.com/glossary/serotonin-syndrome/) - [Small Molecule Drug (Drug Classification)](https://pillfyi.com/glossary/small-molecule-drug/) - [Steady State (Pharmacokinetics)](https://pillfyi.com/glossary/steady-state/) - [Subcutaneous (Drug Formulations & Delivery)](https://pillfyi.com/glossary/subcutaneous/) - [Sublingual (Drug Formulations & Delivery)](https://pillfyi.com/glossary/sublingual/) - [Synergism (Drug Interactions)](https://pillfyi.com/glossary/synergism/) - [Taper (Prescription & Dosing)](https://pillfyi.com/glossary/taper/) - [Therapeutic Drug Monitoring (Prescription & Dosing)](https://pillfyi.com/glossary/therapeutic-drug-monitoring/) - [Therapeutic Index (Pharmacodynamics)](https://pillfyi.com/glossary/therapeutic-index/) - [Therapeutic Substitution (Clinical Pharmacology)](https://pillfyi.com/glossary/therapeutic-substitution/) - [Time to Peak (Pharmacokinetics)](https://pillfyi.com/glossary/time-to-peak/) - [Titration (Prescription & Dosing)](https://pillfyi.com/glossary/titration/) - [Tolerance (Pharmacodynamics)](https://pillfyi.com/glossary/tolerance/) - [Transdermal Patch (Drug Formulations & Delivery)](https://pillfyi.com/glossary/transdermal-patch/) - [Volume of Distribution (Pharmacokinetics)](https://pillfyi.com/glossary/volume-of-distribution/) ## Guide Series: Medication Basics - [How to Read a Drug Label](https://pillfyi.com/guides/medication-basics/how-to-read-drug-label/) - [Prescription vs. OTC: What's the Difference?](https://pillfyi.com/guides/medication-basics/prescription-vs-otc/) - [Generic vs. Brand Name Drugs](https://pillfyi.com/guides/medication-basics/generic-vs-brand-name/) - [How to Store Medications Safely](https://pillfyi.com/guides/medication-basics/how-to-store-medications/) - [Understanding Drug Expiration Dates](https://pillfyi.com/guides/medication-basics/drug-expiration-dates/) - [What Is a Drug Class?](https://pillfyi.com/guides/medication-basics/what-is-drug-class/) - [How to Talk to Your Pharmacist](https://pillfyi.com/guides/medication-basics/talk-to-pharmacist/) - [Safe Medication Disposal](https://pillfyi.com/guides/medication-basics/safe-medication-disposal/) - [Traveling with Medications](https://pillfyi.com/guides/medication-basics/traveling-with-medications/) - [Understanding Your Prescription](https://pillfyi.com/guides/medication-basics/understanding-your-prescription/) - [Children's Medications: What Parents Need to Know](https://pillfyi.com/guides/medication-basics/childrens-medications/) - [Medications for Older Adults](https://pillfyi.com/guides/medication-basics/medications-older-adults/) ## Guide Series: Drug Interactions Deep Dive - [What Are Drug Interactions?](https://pillfyi.com/guides/drug-interactions/what-are-drug-interactions/) - [The CYP450 System Explained](https://pillfyi.com/guides/drug-interactions/cyp450-system-explained/) - [Major Drug Interactions Everyone Should Know](https://pillfyi.com/guides/drug-interactions/major-drug-interactions/) - [Food-Drug Interactions Guide](https://pillfyi.com/guides/drug-interactions/food-drug-interactions/) - [Alcohol and Medications](https://pillfyi.com/guides/drug-interactions/alcohol-and-medications/) - [Herbal Supplements and Drug Interactions](https://pillfyi.com/guides/drug-interactions/herbal-supplement-interactions/) - [Blood Thinner Interactions](https://pillfyi.com/guides/drug-interactions/blood-thinner-interactions/) - [Antidepressant Interactions](https://pillfyi.com/guides/drug-interactions/antidepressant-interactions/) - [Pain Medication Interactions](https://pillfyi.com/guides/drug-interactions/pain-medication-interactions/) - [How to Use an Interaction Checker](https://pillfyi.com/guides/drug-interactions/how-to-use-interaction-checker/) - [Antibiotics and Other Drug Interactions](https://pillfyi.com/guides/drug-interactions/antibiotic-interactions/) - [Managing Multiple Medications Safely](https://pillfyi.com/guides/drug-interactions/managing-multiple-medications/) ## Guide Series: Side Effects Explained - [Common vs. Rare Side Effects](https://pillfyi.com/guides/side-effects/common-vs-rare-side-effects/) - [When to Call Your Doctor About Side Effects](https://pillfyi.com/guides/side-effects/when-to-call-doctor-side-effects/) - [Drug-Induced Liver Injury (DILI)](https://pillfyi.com/guides/side-effects/drug-induced-liver-injury/) - [Medications That Cause Weight Gain](https://pillfyi.com/guides/side-effects/medications-weight-gain/) - [Drug-Induced Kidney Damage](https://pillfyi.com/guides/side-effects/drug-induced-kidney-damage/) - [Understanding QT Prolongation](https://pillfyi.com/guides/side-effects/understanding-qt-prolongation/) - [Managing GI Side Effects](https://pillfyi.com/guides/side-effects/managing-gi-side-effects/) - [Drowsiness and Sedation from Medications](https://pillfyi.com/guides/side-effects/drowsiness-sedation-medications/) - [Drug Allergies vs. Side Effects](https://pillfyi.com/guides/side-effects/drug-allergies-vs-side-effects/) - [Sexual Side Effects of Medications](https://pillfyi.com/guides/side-effects/sexual-side-effects-medications/) - [Skin Reactions from Medications](https://pillfyi.com/guides/side-effects/skin-reactions-medications/) - [How to Report Side Effects (FDA MedWatch)](https://pillfyi.com/guides/side-effects/how-to-report-side-effects/) ## Guide Series: How Drugs Work - [How Your Body Absorbs Medication](https://pillfyi.com/guides/how-drugs-work/how-body-absorbs-medication/) - [What Is a Drug's Half-Life?](https://pillfyi.com/guides/how-drugs-work/what-is-drug-half-life/) - [Extended Release vs. Immediate Release](https://pillfyi.com/guides/how-drugs-work/extended-vs-immediate-release/) - [How Pain Medications Work](https://pillfyi.com/guides/how-drugs-work/how-pain-medications-work/) - [How Antibiotics Kill Bacteria](https://pillfyi.com/guides/how-drugs-work/how-antibiotics-kill-bacteria/) - [How Antidepressants Work](https://pillfyi.com/guides/how-drugs-work/how-antidepressants-work/) - [How Blood Pressure Medications Work](https://pillfyi.com/guides/how-drugs-work/how-blood-pressure-meds-work/) - [How Statins Lower Cholesterol](https://pillfyi.com/guides/how-drugs-work/how-statins-lower-cholesterol/) - [How Insulin and Diabetes Drugs Work](https://pillfyi.com/guides/how-drugs-work/how-insulin-diabetes-drugs-work/) - [How Immunosuppressants Work](https://pillfyi.com/guides/how-drugs-work/how-immunosuppressants-work/) - [How Cancer Chemotherapy Works](https://pillfyi.com/guides/how-drugs-work/how-chemotherapy-works/) - [How Vaccines Work (They're Drugs Too)](https://pillfyi.com/guides/how-drugs-work/how-vaccines-work/) ## Guide Series: Drug Safety & Regulation - [How the FDA Approves New Drugs](https://pillfyi.com/guides/drug-safety-regulation/how-fda-approves-drugs/) - [Understanding Black Box Warnings](https://pillfyi.com/guides/drug-safety-regulation/understanding-black-box-warnings/) - [What Is Off-Label Use?](https://pillfyi.com/guides/drug-safety-regulation/what-is-off-label-use/) - [Drug Recalls: What You Need to Know](https://pillfyi.com/guides/drug-safety-regulation/drug-recalls-explained/) - [Controlled Substances and DEA Schedules](https://pillfyi.com/guides/drug-safety-regulation/controlled-substances-dea-schedules/) - [The Orphan Drug Act Explained](https://pillfyi.com/guides/drug-safety-regulation/orphan-drug-act-explained/) - [Biosimilars vs. Generics](https://pillfyi.com/guides/drug-safety-regulation/biosimilars-vs-generics/) - [How Drug Prices Are Determined](https://pillfyi.com/guides/drug-safety-regulation/how-drug-prices-determined/) - [Clinical Trials: Phases I Through IV](https://pillfyi.com/guides/drug-safety-regulation/clinical-trials-phases-explained/) - [The Placebo Effect in Drug Testing](https://pillfyi.com/guides/drug-safety-regulation/placebo-effect-drug-testing/) - [Drug Safety After Approval (Post-Marketing)](https://pillfyi.com/guides/drug-safety-regulation/drug-safety-post-marketing/) - [How to Check If Your Drug Has Been Recalled](https://pillfyi.com/guides/drug-safety-regulation/check-drug-recall-status/) ## Guide Series: Dosing & Administration - [Why Dosage Matters](https://pillfyi.com/guides/dosing-administration/why-dosage-matters/) - [Loading Dose vs. Maintenance Dose](https://pillfyi.com/guides/dosing-administration/loading-vs-maintenance-dose/) - [What Is Drug Titration?](https://pillfyi.com/guides/dosing-administration/what-is-drug-titration/) - [When and How to Taper Medications](https://pillfyi.com/guides/dosing-administration/when-how-to-taper/) - [PRN Medications: Taking Drugs "As Needed"](https://pillfyi.com/guides/dosing-administration/prn-medications-guide/) - [Kidney Disease and Medication Dosing](https://pillfyi.com/guides/dosing-administration/kidney-disease-medication-dosing/) - [Liver Disease and Medication Dosing](https://pillfyi.com/guides/dosing-administration/liver-disease-medication-dosing/) - [Therapeutic Drug Monitoring (TDM)](https://pillfyi.com/guides/dosing-administration/therapeutic-drug-monitoring-guide/) - [Routes of Administration Explained](https://pillfyi.com/guides/dosing-administration/routes-of-administration/) - [Medication Adherence: Why Consistency Matters](https://pillfyi.com/guides/dosing-administration/medication-adherence-guide/) - [Drug Holidays: When Taking a Break Is OK](https://pillfyi.com/guides/dosing-administration/drug-holidays-guide/) - [Timing Your Medications for Best Effect](https://pillfyi.com/guides/dosing-administration/timing-medications/) ## Guide Series: Condition-Specific Drug Guides - [Complete Guide to Blood Pressure Medications](https://pillfyi.com/guides/condition-drug-guides/blood-pressure-medications-guide/) - [Complete Guide to Diabetes Medications](https://pillfyi.com/guides/condition-drug-guides/diabetes-medications-guide/) - [Complete Guide to Cholesterol Medications](https://pillfyi.com/guides/condition-drug-guides/cholesterol-medications-guide/) - [Complete Guide to Depression Medications](https://pillfyi.com/guides/condition-drug-guides/depression-medications-guide/) - [Complete Guide to Anxiety Medications](https://pillfyi.com/guides/condition-drug-guides/anxiety-medications-guide/) - [Complete Guide to Asthma Medications](https://pillfyi.com/guides/condition-drug-guides/asthma-medications-guide/) - [Complete Guide to Acid Reflux Medications](https://pillfyi.com/guides/condition-drug-guides/acid-reflux-medications-guide/) - [Complete Guide to Pain Management](https://pillfyi.com/guides/condition-drug-guides/pain-management-guide/) - [Complete Guide to Allergy Medications](https://pillfyi.com/guides/condition-drug-guides/allergy-medications-guide/) - [Complete Guide to Thyroid Medications](https://pillfyi.com/guides/condition-drug-guides/thyroid-medications-guide/) - [Complete Guide to Sleep Medications](https://pillfyi.com/guides/condition-drug-guides/sleep-medications-guide/) - [Complete Guide to Arthritis Medications](https://pillfyi.com/guides/condition-drug-guides/arthritis-medications-guide/) ## Guide Series: Special Populations - [Medications During Pregnancy](https://pillfyi.com/guides/special-populations/medications-during-pregnancy/) - [Medications While Breastfeeding](https://pillfyi.com/guides/special-populations/medications-while-breastfeeding/) - [Pediatric Dosing Principles](https://pillfyi.com/guides/special-populations/pediatric-dosing-principles/) - [Geriatric Pharmacology](https://pillfyi.com/guides/special-populations/geriatric-pharmacology/) - [Medications and Kidney Disease](https://pillfyi.com/guides/special-populations/medications-kidney-disease/) - [Medications and Liver Disease](https://pillfyi.com/guides/special-populations/medications-liver-disease/) - [Obesity and Medication Dosing](https://pillfyi.com/guides/special-populations/obesity-medication-dosing/) - [Medications for Athletes](https://pillfyi.com/guides/special-populations/medications-for-athletes/) - [Mental Health Medications and Weight](https://pillfyi.com/guides/special-populations/mental-health-meds-weight/) - [Medications and Driving Safety](https://pillfyi.com/guides/special-populations/medications-driving-safety/) - [Emergency Medications Everyone Should Know](https://pillfyi.com/guides/special-populations/emergency-medications/) - [Medication Management for Caregivers](https://pillfyi.com/guides/special-populations/medication-management-caregivers/) ## Guide Series: Drug Economics & Access - [Why Drugs Cost So Much](https://pillfyi.com/guides/drug-economics/why-drugs-cost-so-much/) - [Generic Drugs: Safety, Savings, and Myths](https://pillfyi.com/guides/drug-economics/generic-drugs-safety-savings/) - [How Drug Patents Work](https://pillfyi.com/guides/drug-economics/how-drug-patents-work/) - [Patient Assistance Programs](https://pillfyi.com/guides/drug-economics/patient-assistance-programs/) - [How to Compare Drug Prices](https://pillfyi.com/guides/drug-economics/how-to-compare-drug-prices/) - [Understanding Drug Insurance Coverage](https://pillfyi.com/guides/drug-economics/understanding-drug-insurance/) - [Biosimilar Drugs: Affordable Biologics](https://pillfyi.com/guides/drug-economics/biosimilar-drugs-affordable/) - [Importing Medications: Legal Considerations](https://pillfyi.com/guides/drug-economics/importing-medications-legal/) - [Over-the-Counter to Prescription Switch](https://pillfyi.com/guides/drug-economics/otc-to-prescription-switch/) - [Compounding Pharmacies Explained](https://pillfyi.com/guides/drug-economics/compounding-pharmacies/) - [Drug Shortages: Causes and Coping](https://pillfyi.com/guides/drug-economics/drug-shortages-causes-coping/) - [The Future of Drug Pricing](https://pillfyi.com/guides/drug-economics/future-drug-pricing/) ## Guide Series: Emerging & Advanced Topics - [Pharmacogenomics: Your Genes and Your Drugs](https://pillfyi.com/guides/emerging-topics/pharmacogenomics-genes-drugs/) - [mRNA Drugs Beyond Vaccines](https://pillfyi.com/guides/emerging-topics/mrna-drugs-beyond-vaccines/) - [Gene Therapy Drugs](https://pillfyi.com/guides/emerging-topics/gene-therapy-drugs/) - [AI in Drug Discovery](https://pillfyi.com/guides/emerging-topics/ai-in-drug-discovery/) - [Antibody-Drug Conjugates (ADCs)](https://pillfyi.com/guides/emerging-topics/antibody-drug-conjugates/) - [GLP-1 Agonists: The Weight Loss Revolution](https://pillfyi.com/guides/emerging-topics/glp1-agonists-weight-loss/) - [CRISPR and Drug Development](https://pillfyi.com/guides/emerging-topics/crispr-drug-development/) - [Psychedelic-Assisted Therapy](https://pillfyi.com/guides/emerging-topics/psychedelic-assisted-therapy/) - [Drug Repurposing: Old Drugs, New Uses](https://pillfyi.com/guides/emerging-topics/drug-repurposing-old-new/) - [Targeted Cancer Therapies](https://pillfyi.com/guides/emerging-topics/targeted-cancer-therapies/) - [Long-Acting Injectable Medications](https://pillfyi.com/guides/emerging-topics/long-acting-injectables/) - [The Microbiome and Drug Metabolism](https://pillfyi.com/guides/emerging-topics/microbiome-drug-metabolism/) ## Drug Classes (ATC) - [0000000069 — Calcium Channel Antagonists](https://pillfyi.com/class/calcium-channel-antagonists/) - [0000000070 — Angiotensin 2 Receptor Antagonists](https://pillfyi.com/class/angiotensin-2-receptor-antagonists/) - [0000000079 — Surfactant Activity](https://pillfyi.com/class/surfactant-activity/) - [0000000080 — Cholinesterase Reactivators](https://pillfyi.com/class/cholinesterase-reactivators/) - [0000000083 — Leukotriene Receptor Antagonists](https://pillfyi.com/class/leukotriene-receptor-antagonists/) - [0000000087 — Chelating Activity](https://pillfyi.com/class/chelating-activity/) - [0000000099 — Adrenergic alpha-Antagonists](https://pillfyi.com/class/adrenergic-alpha-antagonists/) - [0000000100 — Estrogen Receptor Agonists](https://pillfyi.com/class/estrogen-receptor-agonists/) - [0000000102 — Norepinephrine Uptake Inhibitors](https://pillfyi.com/class/norepinephrine-uptake-inhibitors/) - [0000000104 — Cholinergic Muscarinic Agonists](https://pillfyi.com/class/cholinergic-muscarinic-agonists/) - [0000000106 — Prostaglandin Receptor Agonists](https://pillfyi.com/class/prostaglandin-receptor-agonists/) - [0000000109 — Serotonin Uptake Inhibitors](https://pillfyi.com/class/serotonin-uptake-inhibitors/) - [0000000111 — Folic Acid Metabolism Inhibitors](https://pillfyi.com/class/folic-acid-metabolism-inhibitors/) - [0000000114 — Dopamine Uptake Inhibitors](https://pillfyi.com/class/dopamine-uptake-inhibitors/) - [0000000115 — Progestational Hormone Receptor Antagonists](https://pillfyi.com/class/progestational-hormone-receptor-antagonists/) - [0000000116 — GABA B Agonists](https://pillfyi.com/class/gaba-b-agonists/) - [0000000117 — Dopamine Agonists](https://pillfyi.com/class/dopamine-agonists/) - [0000000121 — Hydroxymethylglutaryl-CoA Reductase Inhibitors](https://pillfyi.com/class/hydroxymethylglutaryl-coa-reductase-inhibitors/) - [0000000122 — Adrenergic Agonists](https://pillfyi.com/class/adrenergic-agonists/) - [0000000125 — Cholinergic Muscarinic Antagonists](https://pillfyi.com/class/cholinergic-muscarinic-antagonists/) - [0000000126 — 5-alpha Reductase Inhibitors](https://pillfyi.com/class/5-alpha-reductase-inhibitors/) - [0000000127 — HIV Integrase Inhibitors](https://pillfyi.com/class/hiv-integrase-inhibitors/) - [0000000139 — Mineralocorticoid Receptor Antagonists](https://pillfyi.com/class/mineralocorticoid-receptor-antagonists/) - [0000000144 — Iron Chelating Activity](https://pillfyi.com/class/iron-chelating-activity/) - [0000000145 — Estrogen Receptor Antagonists](https://pillfyi.com/class/estrogen-receptor-antagonists/) - [0000000146 — Androgen Receptor Agonists](https://pillfyi.com/class/androgen-receptor-agonists/) - [0000000147 — Proton Pump Inhibitors](https://pillfyi.com/class/proton-pump-inhibitors/) - [0000000150 — Protein Synthesis Inhibitors](https://pillfyi.com/class/protein-synthesis-inhibitors/) - [0000000151 — Histamine H2 Receptor Antagonists](https://pillfyi.com/class/histamine-h2-receptor-antagonists/) - [0000000152 — G-Protein-linked Receptor Interactions](https://pillfyi.com/class/g-protein-linked-receptor-interactions/) - [0000000154 — Opioid Antagonists](https://pillfyi.com/class/opioid-antagonists/) - [0000000157 — Interferon Inducers](https://pillfyi.com/class/interferon-inducers/) - [0000000160 — Cyclooxygenase Inhibitors](https://pillfyi.com/class/cyclooxygenase-inhibitors/) - [0000000161 — Adrenergic beta-Antagonists](https://pillfyi.com/class/adrenergic-beta-antagonists/) - [0000000166 — alpha Glucosidase Inhibitors](https://pillfyi.com/class/alpha-glucosidase-inhibitors/) - [0000000168 — Selective Estrogen Receptor Modulators](https://pillfyi.com/class/selective-estrogen-receptor-modulators/) - [0000000170 — Free Radical Scavenging Activity](https://pillfyi.com/class/free-radical-scavenging-activity/) - [0000000174 — Opioid Agonists](https://pillfyi.com/class/opioid-agonists/) - [0000000176 — Topoisomerase Inhibitors](https://pillfyi.com/class/topoisomerase-inhibitors/) - [0000000177 — Cholinesterase Inhibitors](https://pillfyi.com/class/cholinesterase-inhibitors/) - [0000000181 — Angiotensin-converting Enzyme Inhibitors](https://pillfyi.com/class/angiotensin-converting-enzyme-inhibitors/) - [0000000183 — Acetyl Aldehyde Dehydrogenase Inhibitors](https://pillfyi.com/class/acetyl-aldehyde-dehydrogenase-inhibitors/) - [0000000184 — Monoamine Oxidase Inhibitors](https://pillfyi.com/class/monoamine-oxidase-inhibitors/) - [0000000190 — Histamine H1 Receptor Antagonists](https://pillfyi.com/class/histamine-h1-receptor-antagonists/) - [0000000191 — Dihydrofolate Reductase Inhibitors](https://pillfyi.com/class/dihydrofolate-reductase-inhibitors/) - [0000000194 — Somatostatin Receptor Agonists](https://pillfyi.com/class/somatostatin-receptor-agonists/) - [0000000196 — GABA A Agonists](https://pillfyi.com/class/gaba-a-agonists/) - [0000000197 — Trypsin Inhibitors](https://pillfyi.com/class/trypsin-inhibitors/) - [0000000202 — beta Lactamase Inhibitors](https://pillfyi.com/class/beta-lactamase-inhibitors/) - [0000000205 — Radiopharmaceutical Activity](https://pillfyi.com/class/radiopharmaceutical-activity/) - [0000000206 — Xanthine Oxidase Inhibitors](https://pillfyi.com/class/xanthine-oxidase-inhibitors/) - [0000000207 — Histamine Receptor Antagonists](https://pillfyi.com/class/histamine-receptor-antagonists/) - [0000000209 — Adrenergic alpha-Agonists](https://pillfyi.com/class/adrenergic-alpha-agonists/) - [0000000233 — Nucleic Acid Synthesis Inhibitors](https://pillfyi.com/class/nucleic-acid-synthesis-inhibitors/) - [0000000235 — Carbonic Anhydrase Inhibitors](https://pillfyi.com/class/carbonic-anhydrase-inhibitors/) - [0000000236 — Alkylating Activity](https://pillfyi.com/class/alkylating-activity/) - [0000000243 — Androgen Receptor Antagonists](https://pillfyi.com/class/androgen-receptor-antagonists/) - [0000000245 — Adrenergic beta-Agonists](https://pillfyi.com/class/adrenergic-beta-agonists/) - [0000000246 — HIV Protease Inhibitors](https://pillfyi.com/class/hiv-protease-inhibitors/) - [0000000250 — Melatonin Receptor Agonists](https://pillfyi.com/class/melatonin-receptor-agonists/) - [0000004931 — Insulin](https://pillfyi.com/class/insulin/) - [0000005657 — Vitamin B 6](https://pillfyi.com/class/vitamin-b-6/) - [0000006395 — Collagenases](https://pillfyi.com/class/collagenases/) - [0000006710 — Interferon-alpha](https://pillfyi.com/class/interferon-alpha/) - [0000007529 — Macrolides](https://pillfyi.com/class/macrolides/) - [0000007587 — Pyrimidines](https://pillfyi.com/class/pyrimidines/) - [0000007860 — Insect Proteins](https://pillfyi.com/class/insect-proteins/) - [0000007948 — Tetracyclines](https://pillfyi.com/class/tetracyclines/) - [0000008294 — Alveolar Surface Tension Reduction](https://pillfyi.com/class/alveolar-surface-tension-reduction/) - [0000008330 — Cardiac Rhythm Alteration](https://pillfyi.com/class/cardiac-rhythm-alteration/) - [0000008476 — Decreased Cell Membrane Integrity](https://pillfyi.com/class/decreased-cell-membrane-integrity/) - [0000008478 — Decreased Cell Wall Integrity](https://pillfyi.com/class/decreased-cell-wall-integrity/) - [0000008479 — Decreased Cell Wall Synthesis & Repair](https://pillfyi.com/class/decreased-cell-wall-synthesis-repair/) - [0000008486 — Decreased Central Nervous System Disorganized Electrical Activity](https://pillfyi.com/class/decreased-central-nervous-system-disorganized-electrical-activity/) - [0000008501 — Decreased Central Nervous System Organized Electrical Activity](https://pillfyi.com/class/decreased-central-nervous-system-organized-electrical-activity/) - [0000008553 — Decreased Cholesterol Absorption](https://pillfyi.com/class/decreased-cholesterol-absorption/) - [0000008556 — Decreased Coagulation Factor Activity](https://pillfyi.com/class/decreased-coagulation-factor-activity/) - [0000008571 — Decreased Cytokine Activity](https://pillfyi.com/class/decreased-cytokine-activity/) - [0000008576 — Decreased DNA Integrity](https://pillfyi.com/class/decreased-dna-integrity/) - [0000008577 — Decreased DNA Replication](https://pillfyi.com/class/decreased-dna-replication/) > Showing top 500 of 1,166. Full dataset: [API](https://pillfyi.com/developers/) ## Full Index - [XML Sitemap](https://pillfyi.com/sitemap.xml)