A prescription diet drug will soon be available over the counter for the first time. The FDA has approved a non-prescription version of GlaxoSmithKline's orlistat, which will be sold under the name "alli".
The medication prevents about 25 percent of dietary fat from being absorbed by the intestines. It's will be sold starting in June and for about $50 for a bottle of 90 capsules.
Side effects of alli can include loose stools and other digestive problems. Those who use the pill are advised to follow a reduced-fat diet and take a daily multivitamin because of reduced absorption of fat-soluble vitamins A, D, E, and K and beta-carotene.
Alli is likely to bring in between $150 and $200 million in annual sales, and could bring in as much as $300 million.