Find patient medical information for Lorazepam Oral on WebMD including its uses, side effects and safety COMMON BRAND(S): Ativan This drug works by enhancing the effects of a certain natural chemical in the body (GABA). .. Pill Identifier · My Medicine · Interaction Checker · Drugs and Medications A-Z · Drugs and. Ativan/Lorazepam Oral Tab: mg, 1mg, 2mg .. Of note, normal therapeutic lorazepam injectable doses contain very small amounts of propylene glycol, .. If hydrocodone is initiated in a patient taking a benzodiazepine, reduce initial. Mar 17, - Lorazepam (Ativan) is used for treating anxiety, insomnia, epilepsy and Lortab, Vicodin, Levo-Dromoran, Demerol, Dolophine, Methadose, Lorazepam oral tablets are available in strengths of mg, 1 mg, and 2 mg.