As a hater of cannabis, nothing against sensible users but the criminal production and distribution by feckless useless gits, I'd even lightly considered using it...and I don't even smoke but having heard its ability to take the edge off seemed attractive.
Constipation with cocodamol, yes definately. I limit my use, only take one when the pain gets really bad, as painful as it is (OA) I guess I'm lucky in that paracetamol or ibrufen usually keep it bearable. I can still cycle short distances, work, walk but at the end of the day I'm done and sore, but hearing some peoples levels of distress with OA, so its just plod on and minimise what I take and be thankfull.