I am currently suffering with severe anxiety attacks. I am taking 150mg of Trazodone in the evening. I have been prescribed 1mg lorazepam to take twice daily. This morning I didn't have any lorazepam so I took 2mg diazepam that I had from a couple of weeks ago. I've now got my lorazepam from the chemist etc so when is safe to take one?. I took the diazepam 7 hours ago. Can I take a Lorezepam now or do I have to wait till tomorrow?