Israel-based Teva Pharmaceutical has announced that it will stop selling its Zecuity migraine patch after users reported experiencing burns and scars when wearing it, ABC News reports.
The U.S. Food and Drug Administration said that some wearers reported severe redness, discoloration of the skin, pain and cracked skin in the location where the patch was worn.
The Zecuity battery-operated patch delivers medicine through the skin and is worn on the upper arm or thigh for up to four hours for migraine relief.
The patch was approved by the FDA in 2013 under its owner at that time, NuPathe Inc. Teva purchased NuPathe in 2014 and began selling the Zecuity patch in the U.S. last year.
Teva is asking that anyone who has the patch not to use it and is recalling existing patches from pharmacies until it can discovers what is causing the burns to occur.