"i have been on and off percocet for the last 10 years since diagnosed with endometriosis. it&#039;s the only thing that helps when the pain gets really bad. i have tried many other nsaids to no avail. i only take 1/2 when absolutely required. after surgery 1/2 every 6 hours. be sure to take them with food to avoid feeling ill or light headed and out of control. i didn&#039;t like the idea of taking a narcotic, but they work, but you do need to respect them. they do have a time and place for pain."