I was diagnosed with Myasthenia Gravis almost a year ago, and I have been taking Mestinon and Azathiaprine. I also take Triameterene for hypertension and the doctor added Prednisone to my regimen in October. Could any of these meds have an effect on menstrual cycles? Oh, due to a back (sciatic nerve) injury, I've been taking Lortab since January 2.
Yes, disruption of a women's menstrual cycle including causing to disappear are well known side effects of prednisone and other steroids.
I hope you are able to feel better soon.