Your dog may have been prescribed a drug called Librela, which is a convenient monthly injection for dogs. The active ingredient is a monoclonal antibody (bedinvetmab) which specifically targets a protein called Nerve Growth Factor (NGF). This inhibits NGF function and in doing so, provides relief from pain associated with osteoarthritis.
Over time the product is gradually broken down by the body so repeated injections are required to continue the effect. Most patients will respond to the first injection though some will take two doses before significant benefit is seen. There is no benefit in trying a 3rd dose if no beneficial response has been seen from the first two.
It is only licenced for use in dogs over 12 months old but not in pregnant or lactating bitches, or in those intended for breeding.
Side effects are extremely rare, and it is safe to use with most other medications. If you have any questions or concerns, then please contact us at Bicester Vets.
The official product datasheet can be found by clicking here