Bonobos have a male philopatric society; males remain with their birth group whereas females migrate to other groups during adolescence. Sexual activity plays a large role in bonobo society; it is used for pleasure, social bonding, and conflict resolution.
A Letrozole side effect - excessive stomach gas. I have been taking letrozole for a year, following chemo and radio for breast cancer. I suffer from excessive stomach gas. The emissions are so smelly that it is embarassing to go out sometimes.
The precise risk with this drug has not been defined. It is probably similar to clomiphene citrate with twins at approximately 8% and higher order multiple pregnancy (triplets) less than 1%. There is no conclusive human data regarding use of letrozole for ovulation treatment and risk of fetal anomalies.