Lorazepam belongs to a class of drugs known as benzodiazepines which act on the brain In Canada - Call your doctor for medical advice about side effects. Ativan (lorazepam) is much riskier than most older adults realize. about the side-effects, risks, and alternative options for treating insomnia or anxiety. . to test for drug abuse which they say is now mandatory in Canada for Ativan use. Generic Symptoms Of Ativan www.ativanx.com $ per pill.. Buy cheap Symptoms Of Ativan Withdrawal pharmacy best prices, quality support service and more.