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All the latest deals, news and more > Pet Pharmacy > Heartworm > Item # 497212

Heartgard Chewables for Cats

Prescription Required

Eligible for free e-certification with purchase
up to 5 lbs


In Stock. Usually Ships 3-6 business days.

5 to 15 lbs


In Stock. Usually Ships 3-6 business days.

Shipping weight = 0.00 lb.


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All medications are filled by VetSource Pharmacy. More information. Can only be shipped to the 50 US states.

Product Summary:

Heartgard Chewables Feline
Heartgard Chewables are a once a month chewable that can protect your cat from the threat of potentially deadly heartworm disease. In a tasty flavor that cats love, Heartgard Chewables is safe for all sizes and breeds of cats. It is approved for use in kittens as young as 6 weeks, small cats regardless of weight, pregnant or breeding queens, and toms. VetSource pharmacy has a direct relationship with and is authorized to dispense Merial products.
Heartgard is used to prevent heartworm infections.
For use:
Cats (at least 6 weeks of age)
SM (Red) for cats up to 5 lbs
LG (Purple) for cats 5-15 lbs
6 tablets
Active ingredient(s):
There are no known drug interactions with ivermectin. It is best to always tell your veterinarian what other medications you are giving to your pet. Quite often your veterinarian may prescribe two different medications, and a drug interaction may be anticipated. In this case, your veterinarian may vary the dose and/or monitor your pet more closely. Contact your veterinarian if your pet experiences any unusual reactions when different medications are given together. Allergic reactions to medications may occur. Be sure to inform VetSource and your veterinarian if your pet has any known drug sensitivities or allergies. If your pet displays symptoms of an allergic reaction, call your veterinarian immediately or go to a veterinary emergency clinic. Symptoms may include but are not limited to: swollen lips, tongue, face, airways; difficulty breathing; agitation; profuse salivation; vomiting; widespread hives and itching.
Side effects:
There are very few side effects when the drug is given at the usual dose. Ivermectin may rarely cause a shock like reaction in dogs. If this occurs, notify your veterinarian. If you notice anything unusual, contact your veterinarian.
Heartgard Chewables should be given orally as directed by your veterinarian.
Please note:

We are not a licensed pharmacy.


This prescription product or therapeutic food is fulfilled by VetSource, a licensed pharmacy in all 50 US states.  VetSource only ships to the 50 US states. 


To order prescription products or therapeutic foods  from VetSource you must have an existing, valid veterinarian-client-patient relationship.  Prescription requests are subject to a Drug Utilization Review by a licensed pharmacist at VetSource for patient safety.


All prescription products (excluding therapeutic food) are FDA approved, or EPA licensed, to be sold in the US.


Prescription products cannot be returned. 


Downloadable Resources
Patient Information SheetPatient Information Sheet

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