I get stomach discomfort after drinking Complan Do you get the same sort of discomfort when you drink a glass of milk?
If so, the stomach discomfort may be due to lactose intolerance. If it is a real problem, it might be eased by taking a little food with the Complan (for example, a biscuit) which would also help to build you up, or splitting the drink into two and leaving a couple of hours between drinking each half. But if it doesn’t get any better you should consult a doctor or healthcare professional.