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Heartworm medications (heartworm medicines) for dogs and cats

Heartworm Medications FOR DOGS — All Require a Prescription
Product	Active Ingredients	Minimum Age	Heartworm	Fleas	Ticks	Intestinal Worms	Ear Mites	Oral or Topical	Tested as Safe for Pregnant or Breeding
Iverhart Plus	Ivermectin Pyrantel	6 weeks	HW			Rounds Hooks		Oral	Safe
Heartgard	Ivermectin	6 weeks	HW					Oral	Safe
Heartgard Plus	Ivermectin Pyrantel	6 weeks	HW			Rounds Hooks		Oral	Safe
Heartgard Heartgard Chewables	Ivermectin	6 weeks	HW					Oral	Safe
Interceptor	Milbemycin	4 weeks	HW			Rounds Hooks Whips		Oral	Safe
Revolution	Selamectin	6 weeks	HW	Adult	Ticks	Rounds Hooks	Ear Mites	Topical	Safe
Sentinel	Milbemycin Lufenuron	4 weeks 2 pounds	HW	Eggs		Rounds Hooks Whips		Oral	Safe

Heartworm Medications FOR CATS — All Require a Prescription
Product	Active Ingredients	Minimum Age	Heartworm	Fleas	Ticks	Intestinal Worms	Ear Mites	Oral or Topical	Tested as Safe for Pregnant or Breeding
Heartgard Heartgard Chewables	Ivermectin	6 weeks	HW			Hooks		Oral	Safe
Interceptor	Milbemycin	6 weeks	HW			Rounds Hooks		Oral	Safe
Revolution	Selamectin	8 weeks	HW	Adult Egg	Ticks	Rounds Hooks	Ear Mites	Topical	Safe

Check out our Heartworm disease FAQ section.

This information is for educational purposes only and is intended to be a supplement to, and not a substitute for, the expertise and professional judgment of your veterinarian. The information is NOT to be used for diagnosis or treatment of your pet. You should always consult your own veterinarian for specific advice concerning the treatment of your pet.

The information about medications is not intended to cover all possible uses, directions, precautions, warnings, allergic reactions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for your pet. It is not a substitute for a veterinary exam, and it does not replace the need for services provided by your veterinarian.

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