One day after the FDA approved a new antiwrinkle drug (Dysport) in April 2009, the agency issued a new requirement that these drugs must carry a “black-box” warning label, the strongest safety warning typically reserved for drugs with very serious risks, Natasha Singer reports in a New York Times story. A popular antiwrinkle drug in the U.S. is Botox.
Botox and Dysport are injectable drugs developed from botulinum toxins, which temporarily paralyze the muscle into which they are injected. When administered for approved uses at approved doses, the botulinum toxins cause no harm. However, if used improperly, the toxins can travel from the injection site to other parts of the body, causing difficulty with swallowing or breathing.
Approved uses of injectable botulinum toxins include treatments for crossed eyes, eyelid spasms, severe underarm sweating, frown lines, and cervical dystonia, a neck problem that can cause severe pain and abnormal head position.
According to the new FDA requirement, the drug manufacturers not only have to add the black-box warning labels, they also have to inform doctors of the risk information in writing, and make available a medication guide to patients at the time of injection.
Patients are well advised to read all handouts on drugs they take, especially something used for cosmetic purposes. Every drug has risks and must be taken with caution.
Ten rules for safer drug use can be found at Public Citizen’s Health Research Group website. These rules and more tips for safe drug use are discussed by Patrick Malone in his book, The Life You Save: Nine Steps to Finding the Best Medical Care — and Avoiding the Worst.