Users share their experience with Ativan and comment on drug side effects, Here is a collection of user reviews for the medication Ativan sorted by most. I took it for 7 days straight 3x.5mg per day as prescribed by my doctor for generalized anxiety disorder. Ativan was prescribed for his anxiety. I hadn't taken it in ages but had a panic attack tonight and I feel really good now after taking it. Ativan (lorazepam) is an effective medicine for occasional or short-term anxiety. It's less likely to have drug interactions, but more likely to cause withdrawal.