I've been on spironolactone for 2 months. Is it normal for it to cause irregular periods?

Yes. Spironolactone can cause irregular bleeding so it is possible that that is what is going on.  However, It is a good idea to go see your doctor and make sure nothing else is wrong to be safe and to make sure that you are not pregnant as well.

Hello and thank you for your question. One of the side effects for spironolactone is irregular menses. I would recommend following up with your board certified dermatologist for evaluation of your skin and discussion of treatment options and side effects. Best of luck.