Heartworm Preventatives

Interceptor Plus

Interceptor Plus is a chewable chicken tablet for dogs that is given once-a-month. It protects them against heartworms as well as multiple intestinal parasites such as: hookworms, whipworms, roundworms, and tapeworms. It also treats infections by intestinal parasites as well. It is safe for dogs and puppies 2lbs and greater than 6 weeks of age. 


Sentinel is a once-a-month chewable for dogs that protects them from heartworms, roundworms, whipworms, and tapeworms as well as fleas. Sentinel is safe for puppies older than 6 weeks. 


Heartgard is a once-a-month beef chewable for dogs and cats. Heartgard prevents heartworms, kills heartworm larvae, roundworms, and hookworms. Heartgard is safe to use in puppies/kittens 6 weeks of age and older. 

Proheart 6 Injection

Proheart 6 injection is a six-month subcutaneous injection that protects dogs from contracting heartworm disease. Proheart 6 is healthy for dogs 6 months and older. 


Revolution is a once-a-month topical solution that you put on the back of your dog or cat's neck. It protects them from heartworms, fleas, and intestinal parasites. It is safe for puppies and kittens 6 weeks and older and greater than 5lbs. 

Dr. Nancy Brady

Dr. Brady grew up in Johnstown, PA, wanting to be a vet for as long as she could remember. She attended Elizabethtown College where she played volleyball and worked as a veterinary technician before attending veterinary school at the University of Pennsylvania. After graduation, she moved to Delaware with her husband to pursue her interest in marine mammal research. In 1999 she pursued her dream of opening Animal Haven. She has 4 children and an ark of animals (4 dogs, 3 cats, and 3 horses)