I've been prescribed Spironolactone and/or birth control to get what remains of my cystic acne under control (it has improved with a new topical regimen, but I still get some cysts around my period, which is somewhat irregular). I would prefer to avoid taking oral medication if possible, and am worried about weight gain. Are there side effects I should be worried about with Spironolactone, beyond potassium levels and increased urination?