There may be an increased risk of drowsiness and sedation if Ativan is taken with any of the following (which can also cause drowsiness): alcohol, tricyclic antidepressants, eg amitriptyline, MAOI antidepressants, eg phenelzine, opioid painkillers, eg morphine, codeine, dihydrocodeine, sedating antihistamines, eg chlorpheniramine, antipsychotics, eg chlorpromazine, clozapine, barbiturates, eg phenobarbitone, other benzodiazepines, eg diazepam, sleeping tablets.

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Ativan is the brand name for Lorazepam, an anti-anxiety drug.

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Ativan withdrawal symptoms, similar in character to those noted with barbiturates and alcohol have occurred following abrupt discontinuance of this drug.

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Each Ativan tablet intended for oral use contains .5mg, 1mg, or 2mg of Lorazepam.