Top Rated Wormers for Dogs, Cats & Horses

Panacur C

Intervet Panacur C Canine Dewormer uses the active ingredient fenbendazole to safely and effectly control and eliminate roundworms, hookworms, whipworms, and tapeworms. Panacur comes in 3 separate dosage sizes, 1 gram, 2 gram, and 4 gram. Panacur C works to kill the parasites by causing disruptions in their metabolism, affecting their ability to produce energy. The appropriate dosage for Panacur dewormer is 1 gram per day for every ten pounds for three days, so choose the size or combination of sizes that is right for your dog. Panacure is safe to use on dogs from 6 weeks old and up, and it is safe to use with pregnant dogs as well.


If your dog has been diagnosed with either roundworms or hookworms, then Pfizer’s Nemex dewormer can provide safe, effective, and long lasting treatment. Nemex 2 dewormer contains pyrantel pamoate which removes parasites by causing them to pass naturally through your dog’s digestive system. Nemex 2 wormer is a great tasting liquid that dogs love, and it can usually be given to your pet directly without being mixed with food. Administer one teaspoon of Nemex-2 for every 10 pounds of body weight. Nemex is also available in a tablet form in dosage sizes for both small and large dogs.

Farnam D-Worm

A fast and easy solution for the eradication of large roundworms and hookworms in adult dogs, Farnam D-Worm Chewables works for large and small dogs and even puppies and kittens. They are chewable meaning they can be easily disguised within a treat, and easy to give to your dog. Its quick acting with the treatment complete 24 hours after administering the dose. They contain pyrantel pamoate, which has been scientifically proven to eradicate roundworms and hookworms. Regular dosing can help prevent your dog getting this problem again, and you don’t need to starve your dog or give him laxatives for the treatment to work. Farnam D-Worm Tapeworm for dogs & cats gets rid of tapeworms with the active ingredient praziquantel, recommended by many vets.

Lambert Kay Evict

Another liquid option is Lambert Kay Evict Liquid Wormer for Dogs. It also gets rid of large roundworms and hookworms in dogs and fairly old puppies with the DS (Double Strength) formula. The regular strength formula is for small to medium puppies and dogs. It’s easy to give to pets as they love the meaty taste.


Merial’s Ivomec injectable and non-injectable parasiticide is specially formulated for the treatment of a variety of internal and external parasites in both cattle and swine. Ivomec dewormer is effective in the treatment of gastrointestinal roundworms, including Ostertagia ostertagim, lungworms,grubs, sucking lice and mange lice in cattle. Ivomec injectable is also effective against gastrointestinal roundworms and lungworms as well as both lice and mange mites in swine. Ivomec pour-on is an alternative to Ivomec injectable and is intended for use on cattle only. The injectable form of Ivomec antiparasitic is available in a 50 milliliter bottle, and the Ivomec pour-on is available in a 250 milliliter bottle.


Horses that are suffering from common internal parasites such as bloodworms, small strongyles, pinworms, and large roundworms can find lasting relief with Strongid Paste equine dewormer. Simple to administer, Strongid Paste includes a special oral syringe with easy to see marks for determining the correct dosage for your horse. Strongid horse wormers are long lasting, and for normal adult horses 8 months of age or older, it only needs to be administered once every 6 weeks. The same anti parasite power is also available in the bulk powdered form of Strongid C and C2X Equine Dewormers that provide an alternative to the paste form that is also safe for all stages of pregnancy and for foals as young as 2-3 months.

8in1 Excel

Safe and effective against large roundworms, 8in1 Excel Roundworm De-Wormer Liquid for dogs and cats is a convenient liquid wormer for treating large roundworms in dogs and cats. 8in1 wormer can be given straight from a spoon or added to your pet’s meal. Recommended for puppies and dogs age 6 weeks and over, it also comes with a convenient dosage cup.

8in1 Safe Guard Canine Dewormer will solve the problems of tapeworms, whipworms, roundworms and hookworms using the FDA approved drug fenbendazole.

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