We had one very gassy CAH’er, and one that was not gassy at all ... so I don’t really think it has anything to do with the meds. If you’re breastfeeding, watching your diet can really help, and avoiding things that seem to bother baby (obvious things like onions and cabbage, and not so obvious things like dairy products, which send my son over the edge!). Ovol drops were a life-saver for us ... all we could do was deal with it until he outgrew it. Hang in there!!