Drug Interaction Checker
Search and add medications to check for known drug-drug interactions with severity ratings.
Checkerข้อจำกัดความรับผิดชอบ: This tool is for informational purposes only. It does not constitute medical advice. Always consult your doctor or pharmacist before making changes to your medication regimen.
How to Use
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1
Search for a drug
Type a drug name into the search box. Results appear as you type. Select the drug you want to check.
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2
Add more medications
Add at least two medications to your list. You can add up to 10 drugs to check all pairwise interactions.
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3
View interactions
Interactions are checked automatically when you have 2 or more drugs. Results show severity level, clinical effect, and management advice.
Add at least 2 drugs. Maximum 10.
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This does not mean no interactions exist. Always consult your pharmacist.
Common combinations to check
About
Drug interactions occur when two or more medications affect each other's pharmacological activity. These interactions can reduce a drug's effectiveness, increase its toxicity, or produce entirely new side effects that neither drug would cause alone. Understanding drug interactions is essential for medication safety.
Pharmacokinetic interactions affect the absorption, distribution, metabolism, or excretion (ADME) of a drug. The most clinically significant involve CYP450 enzymes in the liver. Pharmacodynamic interactions occur when drugs act on the same or related physiological systems. These can be additive, synergistic, or antagonistic.
Always inform your healthcare provider about all medications you take, including over-the-counter drugs, vitamins, and herbal supplements. Drug interaction databases capture documented interactions from FDA labels and clinical studies but cannot predict every possible combination.