"just over 4 weeks ago i started taking xenical that my doctor prescribed me. on the day of started i was 23 stone 13 lbs, i am now 22 stone 5lbs, so i have lost 21lbs in just over 4 weeks! i was sensible enough to read online reviews and decided to make sure i eat as less fat as possible. when i&#039;m hungry at lunch i occasionally had a egg and bacon sandwich but cooked in no fat and using fry lite spray, cut the fat off the meat. i have a sensible normal dinner and breakfast sometimes toast with no butter with a banana inside or a couple slices ham. i have cut out all the junk. side effects for the first few days slight tummy cramp and very occasionally a looser stool when going to the toilet, but no other side effects at all."