FDA Authorizes Emergency Use of Nitenpyram for New World Screwworm Infestations in Pets
The U.S. Food and Drug Administration (FDA) announced the emergency authorization of over-the-counter Nitenpyram Tablets to treat New World screwworm infestations in dogs and cats. This initiative addresses the spread of the parasite primarily in Texas and New Mexico.
Key Details:
- Authorization: Nitenpyram is the first generic animal drug approved specifically for managing screwworm infestations (myiasis) in pets aged 4 weeks and older, weighing at least 2 pounds.
- Efficacy: Nitenpyram acts quickly, killing most larvae within hours of administration. A second dose should be given six hours later.
- Safety Considerations: The medication does not prevent reinfestation, and veterinarians may need to remove remaining larvae and treat wounds. It’s not recommended for pets under 2 pounds.
Preventative Measures:
Veterinarians emphasize the importance of using existing preventative medications, which include:
- Credelio (lotilaner chewable tablets for dogs)
- Credelio CAR (lotilaner chewable tablets for cats/kittens)
- NexGard (afoxolaner chewable tablets for dogs)
- NexGard COMBO (afoxolaner chewable tablets for cats)
Broader Response:
State officials, particularly in Florida, are taking action by imposing restrictions on importing animals from areas with confirmed screwworm cases. Emergency rules have been expanded to prevent the entry of rescue and shelter animals from affected states.
Monitoring and Reporting:
Authorities urge pet owners and professionals to monitor animals for slow-healing wounds or signs of larvae infestation. Despite some confirmed cases, the risk remains low for pets in Harris County, Texas. Community leaders urge caution without causing panic.
Conclusion
As the situation develops, stakeholders are encouraged to stay informed and vigilant in monitoring animal health, focusing on prevention and early detection of potential infestations.
