"i was switched to mibelas from minastrin (probably because my insurance wanted to cover the generic.) it was effective in preventing pregnancy and after a few months my period stopped completely. in the last month or two i was on it i became very depressed and experienced mood swings. i also gained about 10lbs since starting it but i&#039;m not positive i can attribute it to the birth control. but since being off mibelas for 2 1/2 weeks and on lo loestrin i have lost around 2lbs and do not feel the depression or mood swings i felt in mibelas."