I use Promethazine tablet form and suppositories because I am nauseated most of the time, does?

Hi Liz, & Happy Easter! I just looked up this med & didn't see anything about diarrhea, but everyone is different. In fact it says it can cause constipation. Go figure! I think that was for an oral type altho'. I will give you the link I used & maybe you can research the side effects more. Could it be interreacting with one of your other meds? The link will give you an idea on those too. Have a great Easter & write me now & again if you feel up to it! Love, Mary
https://www.drugs.com/promethazine.html

I use the 25mg suppository when I get migraines (in addition to a migraine drug). I have used the suppositories under several different circumstances, however, and each time I have had diarrhea. So, you are not alone! Usually it is within 20 minutes of insertion (tmi? Sorry!) I didn't think they could absorb that fast, but they haven't failed me yet. It is the only thing that can keep me from tossing my cookies with a migraine. Worth a couple minutes ON the toilet versus hours with my head hanging over it!