"i used sprintec for about a year and a half and i gained and immense amount of weight. side effects would include sore breasts and nausea if i had to start over because i forgot. the week i stopped taking sprintec i lost about 5lb and it&#039;s been about a year since i&#039;ve been off sprintec and without even trying i lost 45 pounds. i also had very bad mood swings and became very emotional. on the good side my acne cleared up and my period was light and only lasted 4-5 days."