Dosage should be individualized for maximum beneficial effect. The usual recommended dose in older children and adults ranges from 2 mg to 20 mg I.M. or I.V., depending on the indication and its severity. In some conditions, e.g., tetanus, larger doses may be required. (See dosage for specific indications.) In acute conditions the injection may be repeated within one hour although an interval of 3 to 4 hours is usually satisfactory. Lower doses (usually 2 mg to 5 mg) and slow increase in dosage should be used for elderly or debilitated patients and when other sedative drugs are administered. (See WARNINGS and ADVERSE REACTIONS.) For dosage in infants above the age of 30 days and children, see the specific indications below. When intravenous use is indicated, facilities for respiratory assistance should be readily available. Intramuscular: Diazepam Injection, USP should be injected deeply into the muscle. Intravenous use: (See WARNINGS, particularly for use in children.) The solution should be injected slowly, taking at least one minute for each 5 mg (1 mL) given. Do not use small veins, such as those on the dorsum of the hand or wrist. Extreme care should be taken to avoid intra-arterial administration or extravasation. Do not mix or dilute diazepam with other solutions or drugs in syringe or infusion flask. If it is not feasible to administer diazepam directly I.V., it may be injected slowly through the infusion tubing as close as possible to the vein insertion. Once the acute symptomatology has been properly controlled with diazepam injection, the patient may be placed on oral therapy with diazepam if further treatment is required. Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration whenever solution and container permit (see PRECAUTIONS). NOTE: Solution may appear colorless to light yellow. USUAL ADULT DOSAGE DOSAGE RANGE IN CHILDREN (I.V. administration should be made slowly) Moderate Anxiety Disorders and Symptoms of Anxiety 2 mg to 5 mg, I.M. or I.V. Repeat in 3 to 4 hours, if necessary. Severe Anxiety Disorders and Symptoms of Anxiety 5 mg to 10 mg, I.M. or I.V. Repeat in 3 to 4 hours, if necessary. Acute Alcohol Withdrawal: As an aid in symptomatic relief of acute agitation, tremor, impending or acute delirium tremens and hallucinosis. 10 mg, I.M. or I.V. initially, then 5 mg to 10 mg in 3 to 4 hours, if necessary. Endoscopic Procedures: Adjunctively, if apprehension, anxiety or acute stress reactions are present prior to endoscopic procedures. Dosage of narcotics should be reduced by at least a third and in some cases may be omitted. See PRECAUTIONS for peroral procedures. Titrate I.V. dosage to desired sedative response, such as slurring of speech, with slow administration immediately prior to the procedure. Generally 10 mg or less is adequate, but up to 20 mg I.V. may be given, particularly when concomitant narcotics are omitted. If I.V. cannot be used, 5 mg to 10 mg I.M. approximately 30 minutes prior to the procedure. Muscle Spasm: Associated with local pathology, cerebral palsy, athetosis, stiff-man syndrome or tetanus. 5 mg to 10 mg, I.M. or I.V. initially, then 5 mg to 10 mg in 3 to 4 hours, if necessary. For tetanus, larger doses may be required. For tetanus in infants over 30 days of age, 1 mg to 2 mg I.M. or I.V., slowly, repeated every 3 to 4 hours as necessary. In children 5 years or older, 5 mg to 10 mg repeated every 3 to 4 hours may be required to control tetanus spasms. Respiratory assistance should be available. Status Epilepticus and Severe Recurrent Convulsive Seizures: In the convulsing patient, the I.V. route is by far preferred. This injection should be administered slowly. However, if I.V. administration is impossible, the I.M. route may be used. 5 mg to 10 mg initially (I.V. preferred). This injection may be repeated if necessary at 10 to 15 minute intervals up to a maximum dose of 30 mg. If necessary, therapy with diazepam may be repeated in 2 to 4 hours; however, residual active metabolites may persist, and readministration should be made with this consideration.Extreme caution must be exercised with individuals with chronic lung disease or unstable cardiovascular status. Infants over 30 days of age and children under 5 years, 0.2 mg to 0.5 mg slowly every 2 to 5 minutes up to a maximum of 5 mg (I.V. preferred). Children 5 years or older, 1 mg every 2 to 5 minutes up to a maximum of 10 mg (slow I.V. administration preferred). Repeat in 2 to 4 hours if necessary. EEG monitoring of the seizure may be helpful. Preoperative Medication: To relieve anxiety and tension. (If atropine, scopolamine or other premedications are desired, they must be administered in separate syringes.) 10 mg, I.M. (preferred route), before surgery. Cardioversion: To relieve anxiety and tension and to reduce recall of procedure. 5 mg to 15 mg, I.V., within 5 to 10 minutes prior to the procedure.