"i have been on orsythia for two years now, and after reading these reviews i am making some connections.  i have definitely had very light periods since switching to orsythia (sometimes to the point of wondering whether i was missing a period!) with no cramping at all.  i&#039;ve never had issues with cramping, though.  however, i have had little to no sex drive, some weight gain, and general moodiness here and there. all within the last year and a half  i never thought to relate any of it to my contraceptive and plan to discuss with my doctor at my upcoming appointment."