Here at All Creatures Great & Small, we want to make sure your pet is protected! We do this by doing a heartworm test on your pet annually, and by keeping them on a heartworm preventative year-round. If your pet missed their prevention for more than 60 days, they must be re-tested 6 months after their first missed dose.
Listed below are the heartworm preventatives that we carry at our hospital:

HeartGard Plus – This heartworm prevention comes in a beef-flavored chew which is given once a month. You will find that many dogs love this tasty treat! HeartGard also helps prevent some intestinal parasites. Topical or oral flea/tick preventatives can be used with this product.
- Pets 6 wks or older
- All weights
- Dog, puppy, cat and kitten approved
- Feline HG+ can be approved for online purchase

Trifexis- Trifexis is one of our most popular preventatives because it not only protects your dog against heartworm disease; it also doubles as a flea preventative! This chewable tablet must be given monthly, and will help to protect against some intestinal parasites, as well.
- Pets 8 wks or older
- 5 lbs and above
- Dogs and puppies only
- Safe for ivermectin-sensitive collies

ProHeart 6 – ProHeart 6 is an injection that is given once every 6 months at your vet’s office. With just 2 easy shots per year, owners can be worry-free about their dog’s heartworm prevention. Wow, that is convenient! (An oral dewormer will also be given to your dog).
- Pets 6 month or older
- All weight ranges
- Healthy dogs and puppies only
- Safe for pregnant or lactating females, breeding males, and ivermectin-sensitive collies
Revolution – Revolution is a topical solution that is administered monthly. It protects pets against heartworm disease, ticks, and kills adult fleas while preventing flea eggs from hatching. Revolution may also be used by your vet to help treat ear mites and sarcoptic mange.
- Pets 6 wks or older
- All weight ranges (Note: Not all dog weight ranges are carried at ACGSVH)
- Dog, puppy, cat and kitten approved
Safe for puppies & kittens < 5 lbs