Common equine painkiller disrupts assisted reproduction technique efficiency in mares

Researchers have discovered that phenylbutazone, a non-steroidal anti-inflammatory drug (NSAID) commonly prescribed in horses, can affect the ability of a mare's egg cells -- called 'oocytes' -- to become viable embryos, which is a crucial step in assisted reproduction in horses.

https://www.sciencedaily.com/releases/2024/08/240813164647.htm