Thank you for your important question. As you know if your baby has reflux, milk and food in the stomach passes back up the food pipe (oesophagus) This happens because the valve at the lower end of the food pipe is still developing and is not as yet preventing food from passing back up the food pipe. With time usually a few months, the valve will mature and start to contract and will perform its function normally. Buscopan for infants is used to treat infant colic. The action of Buscopan is to relax spasm in the stomach and intestines. So Buscopan will actually aggravate reflux. The best treatment for reflux is to reduce the acid in baby's stomach thereby stopping the discomfort caused by acid stomach contents refluxing into the lower end of the food pipe. Medicines such as omeprazole are very effective. Your paediatrician will advise you.