The United States Food and Drugs Administration is warning pet owners about a common medication given to pets to treat arthritis. The F.D.A. now says that the drug Librela may be associated with severe neurological effects. And in the worst cases, the medication may have even led to death.

The U.S. Food and Drug Administration has warned veterinarians that an often-prescribed arthritis medication for dogs may be harmful.In a cautionary le

The FDA has issued a “Dear Veterinarian” letter notifying practitioners about adverse events reported in dogs treated with Librela.

The agency said it had reviewed more than 3,600 cases of side effects, including deaths, reported for dogs that took the drug Librela.