I can't remember who it was, but someone here had that exact thing. I do remember there being some suggestions for it. Try typing hiccups into the search bar at the top of the questions page and see if you get that post to come up for you.
Esophagus (Esophageal) Cancer Questions
Asked by ogtxaggiemom on Thursday, April 18, 2013
Husband just had first round of new chemo on tuesday and yesterday he would get hiccups/burps that were huge and one right after another for hours at a time...is this a side effect? His acid reflex is bad but this is awful and he is taking huge dosages of two different reflex medicines.
2 Answers from the Community
There is nothing worse than intractible hiccups, and nothing works better than Thorazine. You need to alert his doctor so that he can get a prescription or go into an ER and get a one time IM injection of Thorazine. The problem with hiccups is that they reset your cardiac rhythm so it is best to get it taken care of and Thorazine always works. Best of luck, Carm RN.