Symptoms → Worms
Worms in the stool or a pot belly?
Start here.
Roundworm, hookworm and whipworm are common in puppies, kittens and pets that spend time outside. Zap-Wormer treats 6 types of worms and can be used from 2 weeks of age.
“Since that first bottle of zap wormer I've been a loyal customer and recommend it to everyone I encounter!”
What it looks like
- Worms in the stool or vomitRoundworms look like strands of spaghetti.
- Pot bellyA round, swollen belly in a puppy or kitten.
- Always hungry, not gaining weightWorms take nutrients before your pet gets them.
- Dull coatLess shine and condition than usual.
- Loose stoolSoft stool that comes and goes.
- Low energyQuieter and more tired than usual.
Why it happens
- Passed from the motherRoundworms and hookworms can pass to puppies and kittens before birth or through milk.
- Eggs in soil and stoolPets swallow eggs while sniffing, digging or grooming.
- Through the pawsHookworm larvae can get in through the skin from contaminated ground.
- HuntingEating mice, birds or other small animals.
- Shared yardsWorms spread easily between pets that share a space.
Contact us and we'll help you pick the right one and the right dose.
The fix
What it does, and how to use it.

- 6 types of worms
- From 2 weeks of age
- Flavored liquid
Zap-Wormer
Treats tapeworm, roundworm, hookworm, whipworm, pinworm and lungworm. A flavored liquid you dose by weight with the syringe.
From $58.99
Shop Zap-WormerDosing syringe included · Made in the USA in an FDA-approved facility
- 1Weigh your pet
The dose is based on weight, so start with an up-to-date weight.
- 2Measure with the syringe
Shake the bottle well, then draw up the dose for that weight from the label chart.
- 3Give it by mouth or in food
Squirt it gently into the cheek, or mix it into a small amount of food.
- 4Finish the full course
Once a day for 3 days for most products, and 7 to 10 days for CARE.
Also helps
From owners who have been there
136 reviews on Google
“Since that first bottle of zap wormer I've been a loyal customer and recommend it to everyone I encounter!”
“First time user and I have found out this product does really work for worms and giardia.”
“Quality product. Fast shipping. Amazing communication. My 3rd time ordering. I have 7 dogs!”
Good questions
Zap-Wormer or Fen-Wormer?
Zap-Wormer treats 6 types of worms: tapeworm, roundworm, hookworm, whipworm, pinworm and lungworm. Fen-Wormer (fenbendazole 10%) treats tapeworm, roundworm, hookworm and whipworm.
From what age can I use Zap-Wormer?
The label says it can be used from 2 weeks of age.
How often should I deworm?
Zap-Wormer is given once a day for 3 days. The label suggests repeating every 3 to 4 months.
Should I treat all my pets?
Worms spread easily between pets that share a yard or bedding, so many owners treat every pet in the home. Ask your vet if you are unsure.
When should I call the vet?
If your pet is weak or pale, has blood in the stool, keeps vomiting, or a very young puppy or kitten seems unwell.
Other things owners deal with
All symptoms →-
Loose stool that keeps coming backDiarrhea, mucus, a bad smell, often in a whole litter
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Coccidia on a stool testWatery stool, often in young puppies and kittens
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Rice-like bits in the stool or furSmall white segments near the tail or in bedding
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Scratching and fleas in the coatDark specks, red skin, restless nights
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A new litter or a new rescueStarting puppies and kittens off right
Not sure this is it?
Answer 4 quick questions about your pet and we will point you to the right bottle.
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