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Diazepam

Prescription

الأسماء التجارية: Diazepam

الشكل الصيدلاني
Tablet
طريق الإعطاء
ORAL
الشركة المصنِّعة
A-S Medication Solutions

About This Medication

DESCRIPTION Diazepam is a benzodiazepine derivative. The chemical name of diazepam is 7-Chloro-1,3-dihydro-1-methyl-5-phenyl-2 H -1,4-benzodiazepin-2-one. It is a colorless to light yellow crystalline compound, insoluble in water. The molecular formula is C 16 H 13 ClN 2 O and the molecular weight is 284.7. The structural formula is as follows: Diazepam is available for oral administration as tablets containing 2 mg, 5 mg or 10 mg diazepam, USP. In addition to the active ingredient diazepam, each tablet contains the following inactive ingredients: colloidal silicon dioxide, magnesium stearate, microcrystalline cellulose, pregelatinized starch (corn) and sodium lauryl sulfate. The 5 mg tablets also contain FD&C Yellow No. 6 Aluminum Lake. The 10 mg tablets also contain D&C Yellow No. 10 Aluminum Lake and FD&C Blue No. 1 Aluminum Lake. structural formula

المواد الفعالة

المادة الفعالة التركيز
Diazepam -

المؤشرات العلاجية والاستخدام

INDICATIONS AND USAGE Diazepam tablets are indicated for the management of anxiety disorders or for the short-term relief of the symptoms of anxiety. Anxiety or tension associated with the stress of everyday life usually does not require treatment with an anxiolytic. In acute alcohol withdrawal, diazepam tablets may be useful in the symptomatic relief of acute agitation, tremor, impending or acute delirium tremens and hallucinosis. Diazepam tablets are a useful adjunct for the relief of skeletal muscle spasm due to reflex spasm to local pathology (such as inflammation of the muscles or joints, or secondary to trauma), spasticity caused by upper motor neuron disorders (such as cerebral palsy and paraplegia), athetosis, and stiff-man syndrome. Oral diazepam tablets may be used adjunctively in convulsive disorders, although it has not proved useful as the sole therapy. The effectiveness of diazepam tablets in long-term use, that is, more than 4 months, has not been assessed by systematic clinical studies. The physician should periodically reassess the usefulness of the drug for the individual patient.

الجرعة وطريقة الإعطاء

DOSAGE AND ADMINISTRATION Dosage should be individualized for maximum beneficial effect. While the usual daily dosages given below will meet the needs of most patients, there will be some who may require higher doses. In such cases dosage should be increased cautiously to avoid adverse effects. ADULTS: USUAL DAILY DOSE: Management of Anxiety Disorders and Relief of Symptoms of Anxiety. Depending upon severity of symptoms—2 mg to 10 mg, 2 to 4 times daily Symptomatic Relief in Acute Alcohol Withdrawal. 10 mg, 3 or 4 times during the first 24 hours, reducing to 5 mg, 3 or 4 times daily as needed. Adjunctively for Relief of Skeletal Muscle Spasm. 2 mg to 10 mg, 3 or 4 times daily Adjunctively in Convulsive Disorders. 2 mg to 10 mg, 2 to 4 times daily Geriatric Patients, or in the presence of debilitating disease. 2 mg to 2.5 mg, 1 or 2 times daily initially; increase gradually as needed and tolerated. PEDIATRIC PATIENTS: Because of varied responses to CNS-acting drugs, initiate therapy with lowest dose and increase as required. Not for use in pediatric patients under 6 months. 1 mg to 2.5 mg, 3 or 4 times daily initially; increase gradually as needed and tolerated. Discontinuation or Dosage Reduction of Diazepam Tablets To reduce the risk of withdrawal reactions, use a gradual taper to discontinue diazepam tablets or reduce the dosage. If a patient develops withdrawal reactions, consider pausing the taper or increasing the dosage to the previous tapered dosage level. Subsequently decrease the dosage more slowly (see WARNINGS: Dependence and Withdrawal Reactions and DRUG ABUSE AND DEPENDENCE: Dependence ).

Side Effects Overview

ADVERSE REACTIONS Side effects most commonly reported were drowsiness, fatigue, muscle weakness, and ataxia. The following have also been reported: Central Nervous System: confusion, depression, dysarthria, headache, slurred speech, tremor, vertigo Gastrointestinal System: constipation, nausea, gastrointestinal disturbances Special Senses: blurred vision, diplopia, dizziness Cardiovascular System: hypotension Psychiatric and Paradoxical Reactions: stimulation, restlessness, acute hyperexcited states, anxiety, agitation, aggressiveness, irritability, rage, hallucinations, psychoses, delusions, increased muscle spasticity, insomnia, sleep disturbances, and nightmares. Inappropriate behavior and other adverse behavioral effects have been reported when using benzodiazepines. Should these occur, use of the drug should be discontinued. They are more likely to occur in children and in the elderly. Urogenital System: incontinence, changes in libido, urinary retention Skin and Appendages: skin reactions Laboratories: elevated transaminases and alkaline phosphatase Other: changes in salivation, including dry mouth, hypersalivation Antegrade amnesia may occur using therapeutic dosages, the risk increasing at higher dosages. Amnestic effects may be associated with inappropriate behavior. Minor changes in EEG patterns, usually low-voltage fast activity, have been observed in patients during and after diazepam tablets therapy and are of no known significance. Because of isolated reports of neutropenia and jaundice, periodic blood counts and liver function tests are advisable during long-term therapy. Postmarketing Experience Injury, Poisoning and Procedural Complications There have been reports of falls and fractures in benzodiazepine users. The risk is increased in those taking concomitant sedatives (including alcohol), and in the elderly.

التحذيرات والاحتياطات

موانع الاستعمال

الحرائك الدوائية

Pharmacokinetics Absorption After oral administration > 90% of diazepam is absorbed and the average time to achieve peak plasma concentrations is 1-1.5 hours with a range of 0.25 to 2.5 hours. Absorption is delayed and decreased when administered with a moderate fat meal. In the presence of food mean lag times are approximately 45 minutes as compared with 15 minutes when fasting. There is also an increase in the average time to achieve peak concentrations to about 2.5 hours in the presence of food as compared with 1.25 hours when fasting. This results in an average decrease in C max of 20% in addition to a 27% decrease in AUC (range 15% to 50%) when administered with food. Distribution Diazepam and its metabolites are highly bound to plasma proteins (diazepam 98%). Diazepam and its metabolites cross the blood-brain and placental barriers and are also found in breast milk in concentrations approximately one tenth of those in maternal plasma (days 3 to 9 post-partum). In young healthy males, the volume of distribution at steady-state is 0.8 to 1.0 L/kg. The decline in the plasma concentration-time profile after oral administration is biphasic. The initial distribution phase has a half-life of approximately 1 hour, although it may range up to > 3 hours. Metabolism Diazepam is N-demethylated by CYP3A4 and 2C19 to the active metabolite N-desmethyldiazepam, and is hydroxylated by CYP3A4 to the active metabolite temazepam. N-desmethyldiazepam and temazepam are both further metabolized to oxazepam. Temazepam and oxazepam are largely eliminated by glucuronidation. Elimination The initial distribution phase is followed by a prolonged terminal elimination phase (half-life up to 48 hours). The terminal elimination half-life of the active metabolite N-desmethyldiazepam is up to 100 hours. Diazepam and its metabolites are excreted mainly in the urine, predominantly as their glucuronide conjugates. The clearance of diazepam is 20 to 30 mL/min in young adults. Diazepam accumulates upon multiple dosing and there is some evidence that the terminal elimination half-life is slightly prolonged.

Frequently Asked Questions

INDICATIONS AND USAGE Diazepam tablets are indicated for the management of anxiety disorders or for the short-term relief of the symptoms of anxiety. Anxiety or tension associated with the stress of everyday life usually does not require treatment with an anxiolytic. In acute alcohol withdrawal, diazepam tablets may be useful in the symptomatic relief of acute agitation, tremor, impending or acute delirium tremens and hallucinosis. Diazepam tablets are a useful adjunct for the relief of skeletal muscle spasm due to …

DOSAGE AND ADMINISTRATION Dosage should be individualized for maximum beneficial effect. While the usual daily dosages given below will meet the needs of most patients, there will be some who may require higher doses. In such cases dosage should be increased cautiously to avoid adverse effects. ADULTS: USUAL DAILY DOSE: Management of Anxiety Disorders and Relief of Symptoms of Anxiety. Depending upon severity of symptoms—2 mg to 10 mg, 2 to 4 times daily Symptomatic Relief in Acute Alcohol Withdrawal. …

WARNINGS Risks from Concomitant Use with Opioids Concomitant use of benzodiazepiones, including diazepam tablets, and opioids may result in profound sedation, respiratory depression, coma, and death. Because of these risks, reserve concomitant prescribing of these drugs in patients for whom alternative treatment options are inadequate. Observational studies have demonstrated that concomitant use of opioid analgesics and benzodiazepines increases the risk of drug-related mortality compared to use of opioids alone. If a decision is made to prescribe diazepam tablets concomitantly with …

CONTRAINDICATIONS Diazepam tablets are contraindicated in patients with a known hypersensitivity to diazepam and, because of lack of sufficient clinical experience, in pediatric patients under 6 months of age. Diazepam tablets are also contraindicated in patients with myasthenia gravis, severe respiratory insufficiency, severe hepatic insufficiency, and sleep apnea syndrome. They may be used in patients with open-angle glaucoma who are receiving appropriate therapy, but is contraindicated in acute narrow-angle glaucoma.

Diazepam is a prescription medication. You will need a valid prescription from a licensed healthcare provider.

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References & Data Sources

إخلاء المسؤولية الطبية

المعلومات الواردة في هذه الصفحة مخصصة للأغراض التعليمية فقط ولا ينبغي استخدامها بديلًا عن المشورة الطبية المتخصصة أو التشخيص أو العلاج.

استشر دائمًا طبيبك أو أي مقدم رعاية صحية مؤهل بشأن أي أسئلة تتعلق بحالة طبية أو دواء.

مصادر البيانات: DailyMed (NLM), openFDA, MFDS

Medical Disclaimer

This content is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making medication decisions.

Data sources: ChEMBL, PubChem, DailyMed.