Warning! What you buy is not necessarily what you'll get

The FDA has issued an alert regarding buying certain prescription drugs over the Internet. Many Americans who ordered Ambien, Xanax, Lexapro, and Ativan were shocked to learn the pills they received actually contained the anti-psychotic drug, haloperidol, more commonly known as Haldol.

Used primarily to treat schizophrenia, common side effects of haloperidol include muscle stiffness, spasms, agitation, and sedation. Several people who received the contaminated medication sought treatment for difficulty in breathing and muscle spasms and stiffness, common side effects of haloperidol.

The origin of these misrepresented tablets is unknown, and several Internet web sites have been identified as selling the contaminated product. Photographs of the affected tablets can be viewed here. If you think you may have received these tablets instead of the medication ordered, report the suspected products to the FDA using a product quality problem report.