Dec 12, - Detailed Diazepam dosage information for adults, the elderly and children. Includes dosages for Anxiety, Muscle Spasm, Seizures and more;. diazepam pediatric dosing. Peds Dosing. Dosage forms: TAB: 2 mg, 5 mg, 10 mg; SOL: 5 mg per 5 mL, 5 mg per mL; INJ: 5 mg per mL. Withdrawal symptoms occur with Diazepam tablets even when normal doses are given for short periods of time. See Section 3, 'If you stop taking Diazepam.