I personally havent been on Lorazepam...but have tryed Serepax and Valium, which just made me sick! So i was put on Xanax(which is a benzo, like valium and serepax too i think). I was on it for about 8 months, and had to keep upping my dosage(started at .5, stopped at 2.5) for it to have some effect(the doc who perscribed me it forgot to mention it can be addictive!), then i stopped it for about 2 months...Then started having major major panic attacks with all the physical symtoms feeling like i was about to die! So im back on it now at 2.5mg, but only when i feel an attack come on, or have the physical symtoms and all that.
Good luck with the meds.