I have twisted my back, I know it's nothing serious I only leant down to pick something up but I am in agony. I left it for a week before ringing the GP who prescribed 5mg diazepam and co-cocodamol and said that they should take away all the pain. It's been 4 days since I started taking them and they still barely touch the pain, even with ibuprofen in between, does anyone know if I could I take another diazepam to take the dose up to 10mg or if that would even work. I am in so much pain and just can't get comfortable, I've tried heat rub and hot water bottles as well and just want some relief.