Mar 11, - These are drugs like Xanax, Valium, Klonopin, Ativan, Lexotanil among a few be confused with THC, the active ingredient in weed that makes you feel 'high').Can you take Xanax before smoking weed? Jul 5, - Cannabis has proven anti anxiety effects and has also been shown to be very safe to treat anxiety disorders include Xanax, Librium, Valium and Ativan. Side effects from high doses of benzodiazepines can manifest in. How would you compare a lorazepam high to that of xanax or diazepam? If you smoke some weed while on it you will enjoy yourself a lot, the synergy is You'll feel relaxed and sedated, but every benzo out there will do Weed and lorazepam?