FDA issues new warnings on weight loss pills

May 26, 2010 3:56:07 PM PDT
Federal health officials are warning people who use the weight loss pills Alli and Xenical that it may cause severe liver damage in rare cases.

The Food and Drug Administration has added a warning label to the medications after identifying 13 instances of liver damage associated with the drugs.

A causal effect between the drugs and the problem has not been established.

The FDA urged doctors and patients to watch for signs of liver injury including itching, yellow eyes and skin and loss of appetite.