"when i first switched my birth control from the generic version of ortho tri-cyclen lo to kariva, it was an attempt to regulate my ph balance. although the switch made no difference in that area, i noticed a significant change in my mood. in a good way! i had been taking the other birth control for so long, i thought it was just me that had crazy mood swings every month. once i switched, the moods were gone. my mind was blown. i have also noticed a decrease in acne which is always a plus. they&#039;ve also just changed the bubble pack to release the pills more easily. i recommend."