That's actually funny because the study I read said increased libido. LOL. I don't know if it was a different drug.
Also, depression, loss of fertility (after a year of stopping drug), headaches, and acne.
Side effects for women include blood clots, stroke and a 20% higher chance of breast cancer. If you need the hormones for other reasons, yes, birth control pills are useful. But, to me, the risk of serious health complications isn't worth it. Use a condom and double up with a diaphragm or something.