I would call your doc just to be sure.

http://www.blackberryclinic.co.uk/cl...l/epidural.php

http://www.medications.com/effect/tag/buttock
In regards to my menstrual cycle I actually noticed a positive reaction in that it is much less painful. I have been plagued with extremely painful cramps for all of my life and since I have received the injections it has been much more bearable. I am assuming it is because of the anti-inflammatory properies of steriods. I did however, notice more clotting. And the first time I received the shot, I got my period for two weeks straight.

Hugs.