"okay so i got this iud a few days ago and i just wanted to share my experience. i heard pretty bad things about the insertion so i took a percocet pain killer before i went in. like 15 mg which is a lot. (normal dosage is 5mg, i had a 30mg one and cut it in half). by the time i got to the doctor, i was definitely feeling the effects of the pain killer. when he first inserted the tampon-like tool in, i was uncomfortable but fine, but omg when the actual iud went in it felt like a cramp on steroids and the pain was so unbearable i fainted. i couldn&#039;t move for 20 min from the procedure chair and didn&#039;t move from my bed for the rest of the day. i cant even imagine what it would&#039;ve been like without the percocet! my period ended 2 days after insert"