TRENTON, N.J. (AP) — A new treatment for pain caused by endometriosis was approved Tuesday by U.S. regulators.

The common condition involves abnormal tissue growth from the uterus that can cause severe pain and infertility.

Drugmaker Abbvie said the Food and Drug Administration approved the drug, Orilissa, for pain during menstruation and intercourse and at other times. Abbvie says it's the first new pill for endometriosis in a decade.

In testing, it significantly reduced menstrual pain in about 45 percent of women given a low dose and 75 percent given a high dose, compared to about 20 percent...