... the whole day. When I take the lorazepam 2mg twice a day, it doesn't last long and gives me the feeling I need to take more. Has anyone felt valium worked longer and better for them than lorazepam? I suffer from GAD, and was diagnosed with bipolar years ago. For that disorder I was given 20mg paxill. This causes hot flash and sweats, but when I took that 10mg valium I didn't have the sweats. Thank you - Pug2008