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Updated: 14 Apr 2026

10 Best Cat Heartworm Medications

#1 Best Pick
Aristopet Multi Wormer for Dogs and Cats 8 Pack

Aristopet Multi Wormer for Dogs and Cats 8 Pack

Brand: Aristopet
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  • Suitable for both dogs and cats
  • Safe to give to young puppies and kittens
  • Effective in treating and controlling intestinal roundworms, tapeworms, hydatid tapeworms and hookworms
  • Provides treatment for up to 3 months
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#2 Best Value
MILBEMAX SMALL CAT 2 TABS 0.5 - 2KG BODY WEIGHT

MILBEMAX SMALL CAT 2 TABS 0.5 - 2KG BODY WEIGHT

Brand: Milbemax
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  • All wormer tablets for cats
  • Treats and controls all major intestinal worms of cats
  • Also controls tapeworm
  • Protects from heartworm when given monthly
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#3 Budget Pick
Milbemax Allwormer Tablets for Large Cats Over 2 Kg 2 Tablet

Milbemax Allwormer Tablets for Large Cats Over 2 Kg 2 Tablet

Brand: Generic
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  • Palatable beef flavoured tablets loved by the pet
  • Easy to administer oral treatment
  • Destroys intestinal worms
  • Prevents heartworms
  • Suitable for all breeds of kittens, small cats and large cats
  • Protects the pet from severe intestinal disorders and secondary diseases
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#4 Top Choice
Profender Allwormer for Cat 5-8 kg, Red (Pack of 2)

Profender Allwormer for Cat 5-8 kg, Red (Pack of 2)

Brand: Profender
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  • Destroys roundworms, lungworms, tapeworms and hookworms
  • Ideal treatment for mixed parasitic infections
  • Single treatment for multiple types of intestinal worms
  • Easy-to-use spot-on allwormer protects without the trauma of tableting
  • First of its kind of spot-on treatment for intestinal worms found in cats
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#5 Popular Choice
Milbemax Allwormer Tablets for Small Cats 0.5 to 2 Kg 4 Tablets

Milbemax Allwormer Tablets for Small Cats 0.5 to 2 Kg 4 Tablets

Brand: Generic
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  • Palatable beef flavoured tablets loved by the pet
  • Easy to administer oral treatment
  • Destroys intestinal worms
  • Prevents heartworms
  • Suitable for all breeds of kittens, small cats and large cats
  • Protects the pet from severe intestinal disorders and secondary diseases
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#6 Top Pick
HEARTWORM PREVENTION FOR CATS: Understanding the Risks, Selecting the Most Effective Prevention Methods, and Maintaining a Healthy Feline Companion

HEARTWORM PREVENTION FOR CATS: Understanding the Risks, Selecting the Most Effective Prevention Methods, and Maintaining a Healthy Feline Companion

Brand: No Brand
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  • No features listed
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#7 Top Pick
Paragard Allwormer Tablets for Cat 0-5 kg, Purple (Pack of 4)

Paragard Allwormer Tablets for Cat 0-5 kg, Purple (Pack of 4)

Brand: Paragard
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  • Palatable liver flavoured tablets
  • An effective wormer for cats
  • For the control of all common gastrointestinal worms in cats
  • Suitable for cats and kittens of at least 2 weeks of age
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#8 Top Pick
Advocate Cat, Monthly Spot-On Protection from Fleas, Heartworm and Worms, Six Pack Flea Treatment for Cats Over 4 kg, 6 Pack

Advocate Cat, Monthly Spot-On Protection from Fleas, Heartworm and Worms, Six Pack Flea Treatment for Cats Over 4 kg, 6 Pack

Brand: Advocate
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  • Parasite protection - Advocate Cat offers comprehensive protection against fleas, heartworm disease, intestinal worms, lungworms, and mites for cats of all sizes
  • Easy to use - Advocate for cats is a once monthly, easy to apply, spot-on treatment for cats that makes it simple to protect your cat from parasites each month
  • Fast-acting - This topical flea treatment for cats kills fleas fast and on contact, so there's no need for fleas to bite, and it reduces the incidence of flea allergy dermatitis
  • Continuous protection - Advocate offers unique, ongoing protection from worms between treatments, keeping your cat safe during the days between doses
  • Broad-spectrum wormer - Advocate is a cat dewormer that treats and controls adult and juvenile roundworms and hookworms, and prevents heartworm disease
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#9 Top Pick
Advocate Cat, Monthly Spot-On Protection from Fleas, Heartworm and Worms, Three Pack Flea Treatment for Kittens & Small Cats up to 4 kg, 3 Pack

Advocate Cat, Monthly Spot-On Protection from Fleas, Heartworm and Worms, Three Pack Flea Treatment for Kittens & Small Cats up to 4 kg, 3 Pack

Brand: Advocate
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  • Parasite protection - Advocate Cat offers comprehensive protection against fleas, heartworm disease, intestinal worms, lungworms, and mites for cats of all sizes
  • Easy to use - Advocate for cats is a once monthly, easy to apply, spot-on treatment for cats that makes it simple to protect your cat from parasites each month
  • Fast-acting - This topical flea treatment for cats kills fleas fast and on contact, so there's no need for fleas to bite, and it reduces the incidence of flea allergy dermatitis
  • Continuous protection - Advocate offers unique, ongoing protection from worms between treatments, keeping your cat safe during the days between doses
  • Broad-spectrum wormer - Advocate is a cat dewormer that treats and controls adult and juvenile roundworms and hookworms, and prevents heartworm disease
Check latest price on Amazon
#10 Top Pick
NEOVET FOR CATS (OVER 4KG) 6 PACK

NEOVET FOR CATS (OVER 4KG) 6 PACK

Brand: Neovet
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  • Internal and external parasite control treatment
  • Eliminates fleas, flea larvae and mites
  • Treats and controls roundworms, hookworms and lungworms
  • Prevents deadly heartworm disease
  • Reduces the incidence of flea allergy dermatitis
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