They are wanting to do a Heller Myotomy with a Nissan as well but if the fundoplication is to tight then you just went through a worthless procedure.
Fun fact, not sure if it's a good or bad thing but I'm a retired GI nurse and witnessed complications with both the Heller and the Myotomy.
No easy answer 🤷‍♀️
However I am curious as to what medicine you referred to.
Constipation is not a problem for me, along with this issue I have EPI, yes post Covid, so I truly wouldn't know what to do if I had a solid BM, lol