Side Effects of Neoral in Cats

Neoral can help an asthmatic cat feel great.

Novartis' Neoral or oral cyclosporine is an immunosuppressant drug many veterinarians prescribe to treat asthmatic cats. Neoral will prevent a cat's immune system from releasing the histamines that lead to respiratory problems from allergies. Neoral's side effects become more serious with prolonged use.

Common Side Effects

Stomach upset including nausea, diarrhea and lack of appetite,states Mar Vista Vet, is the side effect most frequently associated with Neoral. These effects, however, are usually temporary.

Serious Side Effects

Continued use of Neoral can lead to bacterial or fungal infections that a fully functioning immune system would combat. Long-term use may also allow cancers, including lymphoma, to develop.

Neoral and Vaccinations

Another concern with Neoral is that cyclosporine can render some vaccinations ineffective. Some vets suggest a small possibility that giving a cat on cyclosporine a modified live vaccine could cause the disease the vaccine normally prevents.

Managing Side Effects

Stomach upset, says Mar Vista Vet, will normally clear up on its own within a week. Temporarily reducing the cat's Neoral dose, however, may speed the resolution.

Considerations

Eliminate your cat's existing bacterial or fungal infections before starting him on Neoral, so his suppressed immune system doesn't let them spread.

References

• Mar Vista Vet: Cyclosporine
• Pet Place: Cyclosporine

Resources

• More about Feline Asthma