Detailed dosage guidelines and administration information for Valium (diazepam). Includes dose adjustments, warnings and precautions. The right diazepam dosage is a balancing act of treating your symptoms and minimizing the risk of these side effects. In this guide, we’ll review the recommended oral diazepam dosages. For adult patients with anxiety disorders, the FDA-approved maximum daily dose of diazepam is 40 mg per day, administered as 2-10 mg taken 2 to 4 times daily, though most patients respond adequately to lower doses of 4-40 mg daily. 1 Diazepam is used to treat anxiety, symptoms of acute alcohol withdrawal, and more. Find out what the recommended dosages are, how to take the drug, and more. Detailed Diazepam dosage information for adults, the elderly and children. Includes dosages for Anxiety, Muscle Spasm, Seizures and more; plus renal, liver and dialysis adjustments. Second dose: When required, may be administered after at least 4 hr after initial dose; if the second dose is administered, use a new blister pack of diazepam intranasal Diazepam is used to relieve symptoms of anxiety and alcohol withdrawal. This medicine may also be used to treat certain seizure disorders and help relax muscles or relieve muscle spasm. Learn about Valium’s (diazepam) dosage, uses, and potential side effects. Find out how to take it safely and avoid risks such as overdose and addiction. Valium (diazepam) is typically taken two to four times daily, depending on the condition being treated and the dose your prescriber has set. This article describes the dosages of diazepam, its strengths, and how to take it. For a detailed overview of this drug, check out this in-depth diazepam article.