Both Ativan (lorazepam) and Xanax (alprazolam) are benzodiazepines, The tablet can be taken orally and it is available in compositions of mg, 1 mg, and 2 mg. The drug is times potent in comparison to Valium. Benzodiazepine drugs are used as sedatives, muscle relaxants, tranquilizers, and sleep aids. Feb 14, - Diazepam, unlike lorazepam, can also cause muscle spasms and The usual oral pill diazepam dose for anxiety or seizures is 2 mg to 10 mg ‎What are the side effects of · ‎How should Ativan and. Dec 8, - ativan vs valium - dosage, lorazepam vs diazepam strengths, half life, 1 mg and 2 mg and in the form of solution for intramuscular or intravenous status epilepticus, anticonvulsant for muscle spasms and alcohol withdrawal. . The cost for Xanax tablet mg is around $ for a supply of tablets.