Orudis (ketoprofen) is a form of nonsteroidal anti-inflammatory drug (NSAID). It is believed that NSAIDs relieve dysmenorrhoea mainly by suppressing the production of endometrial prostaglandins in the walls of the uterus during menstruation. This alleviates cramps and restores regular uterine activity. It also provides direct analgesic action on the central nervous system and helps relieve pain.