mefenamic acid: a nonsteroidal anti-inflammatory and analgesic drug (trade name Ponstel) used to treat mild pain (especially menstrual cramps)
nonsteroidal anti-inflammatory: an anti-inflammatory drug that does not contain steroids
dehiscence: (biology) release of material by splitting open of an organ or tissue; the natural bursting open at maturity of a fruit or other reproductive body to release seeds or spores or the bursting open of a surgically closed wound