I have been using Aldara for a few months now and have noticed no period. I mentioned to doctor and he looked at me like i was a weirdo, and proceeded to tell me its not internal med and no way it affects menstrual cycle.
I don't drink, smoke, take any medications, and havn't had sex on 6 months. No chance im pregnant but did take test to rule that out of doctors mind.
I am 100% positive as i have kept a calender of all periods over last few years and its a coincidence same time i used Aldara my periods stopped.
Must say it still has not yet cleared the reason I started using it. I won't continue to use it.