Senna
"I had leg surgery last week and the morphine from the pain relief gave me rather severe constipation - it was the worst feeling, I was sore sitting down that I was crying and depressed. I tried prunes and fybogel - but no movement. I couldn't bear it.

I took 2 senokot 2 nights ago before bed - nothing. I took another 2 after 12 hours. About 2 hours later. I had a rather painful hard bowel movement, a couple of hours later I had crippling stomach cramps - which led to a further 2 bowel movements, each getting softer (but no diarrhoea). I had another before bed that night - back to my normal consistency, then another on waking this morning. I am delighted. 

Was it a pleasant experience? No. Would I do it again? Albsolutely!"