In a new report this week, the FDA highlighted several serious adverse events and deaths associated with the drug Librela. The drug's maker, however, claims that it remains safe and effective.

Channel 2 Action News has learned that the FDA is now alerting veterinarians about reports of health problems in dogs – including hundreds of deaths – tied to a drug for arthritis pain.

Last week, the Food and Drug Administration (FDA) published a letter to veterinarians notifying them of severe adverse events linked to Librela (bedinvetmab injection) a common drug used to treat arthritis in dogs.