Have a dentist appointment tomorrow morning. I am petrified of going to the dentist and have had IV sedation last time. Wasn't the 'cure-all' I had hoped for and as I'm only going in for a filling tomorrow I will try to be brave and just take some Diazepam tablets (10mg). Anyway, I'm rambling...I plan to take the tablets around 30 minutes before my treatment, (after driving). But how long does it take before it normally starts to wear off? I know everyone is different, but just wanted to have a rough idea. I plan to drive back, but will only do so after it has worn off. I will take 5mg now to see how it affects me (and to relax me enough to have a good night sleep). If I feel groggy for hours afterwards I know I will have to arrange for someone to pick me up after my appointment.