I had one put in back in August. I had about 6 weeks of almost constant spotting and was really, really getting annoyed. But, it stopped about 2wks ago. My OB said to expect 3-6 mos of on/off spotting. So if you can get through that first month or two of totally annoying daily spotting, it does get better.
I haven't noticed any other side effects.
Mom to two amazing DDs ('07 & '09) and a fur baby.
Gluten free since Nov '11 after non-celiac gluten sensitive diagnosis. Have had great improvement or total elimination of: migraines, bloating/distention, heartburn, cystic acne, canker sores, bleeding gums, eczema on elbows, dry skin and scalp, muscle cramps, PMS, hair loss, heart palpitations, fatigue. I'm amazed.