No one can predict how we go with drug absorption post surgery. As you have said there isn't a lot of research. What I've researched says that if you are allowed to crush the tablets than do so...and not to stop them. If you are on extended release medication then your psychiatrist needs to have a plan for you personally on how to manage that particular medication. Some people are switched to an alternative non sustained release med. Either way, anyone on medication needs close monitoring by their doctor. Sent from my SM-G950F using BariatricPal mobile app