When does valium expire

Valium has a shelf life of 5 years, many drugs do decompose or are "I have tried valium which 'expired' in a few years ago, and it. At the beginning of I was prescribed 25 diazepam tablets by my doctor Does anyone have any ideas about how long they are good for?How long does diazepam last for and whats the best way to take it. Valium lasts and will affect you for about hours, although Valium Do you still have a question about the effects of Valium or its duration of action? . of with me, I took a 10mg valium from mexico that expired in