Comparison Chart of Wormers for Cats
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Wormer Comparison Chart

Drs. Foster & Smith Educational Staff
Click here for a pdf version of this article.
Treatment Options for Worms

It can be overwhelming trying to understand the different types of worms your pet can develop, and what treatment options are best. Use this chart to learn which product will work best for your cat's condition. You'll discover what ingredients each medication contains and also learn important safety information for each.

Ingredients LargeRound-worms Hook-worms Tape-worms Whip-worms Heart-worms NeedRX SafeDuringPreg-nancy Min.Age/Weight
Bayer Tapeworm Dewormer Tablets for Cats praziquantel X Over 6 wks
Excel Roundworm De-Wormer for Cats Piperazine X Over 6 wks
Droncit® Tablets Praziquantel X X X Over 6 wks
Heartgard®Chewables Ivermectin X** X X** X 6 wks
Revolution®++ Selamectin X+ X** X X X Over 8 wks
Advantage MultiTM++ Imidacloprid/Moxidectin X X X X Notdeter-mined Over 9 wks/2 lbs
**Not effective against Uncinaria, the Northern hookworm.+T. cati, only.++Also effective against fleas, flea eggs, and ear mites. Applied topically.

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