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Dewormer Comparison Chart


Drs. Foster & Smith Educational Staff
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As a general rule you may not see the worms that infect your dog or puppy. Since most puppies are born with worms, it's very important that you get them on a deworming regime as soon as age permits. For adult dogs a fecal exam by a veterinarian is the quickest and most accurate way to tell if your faithful friend has worms of any kind.

The following is a list of wormers we have available, their ingredients, minimum age, weight requirements, and type of worms they treat.

Ingredients Large
Round-
worms
Hook-
worms
Tape-
worms
Whip-
worms
Heart-
worms
Need
RX
Safe
During
Preg-
nancy
Min.
Age/
Weight

Prowormer•2®
Pyrantel
pamoate
yes yes 2 wks

NemexTM-2
Pyrantel
pamoate
yes yes 2 wks

Droncit®
Praziquantel yes yes yes 4 wks

Drontal® Plus
Praziquantel,
Pyrantel
pamoate,
Fenbendazole
yes yes yes yes yes 3 wks
& 2 lbs

Panacur®
Fenbendazole yes yes yes** yes yes yes None

Heartgard®
Plus
Ivermectin,
Pyrantel
pamoate
yes yes yes yes yes 6 wks

Heartgard®
Chewables
Ivermectin yes yes yes 6 wks

Sentinel®
Milbemycin
oxime
yes yes+ yes yes yes yes 4 wks
& 2 lbs

Revolution®
++
Selamectin yes yes yes 6 wks

Tri-Heart® Plus
Ivermectin,
Pyrantel
pamoate
yes yes yes yes yes 6 wks

Safe-Guard®
Granules
Fenbendazole yes yes yes** yes yes 6 wks

Advantage MultiTM++
Imidacloprid/Moxidectin yes yes yes yes yes n/d 7 wks/3 lbs

Iverhart MaxTM
Ivermectin/Pyrantel
/Praziquantel
yes yes yes yes yes n/d 8 wks

Trifexis
Milbemycin oxime
/Spinosad
yes yes yes yes yes 8 wks/5 lbs
Ingredients Large
Round-
worms
Hook-
worms
Tape-
worms
Whip-
worms
Heart-
worms
Need
RX
Safe
During
Preg-
nancy
Min.
Age/
Weight
**Not effective against Dipylidium caninum, the tapeworm transmitted by fleas.
+Not effective against Uncinaria, the Northern hookworm.
++Also effective against fleas, flea eggs, ticks, and certain mites. Applied topically.

 

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