Description

Fenbendazole Liquid Dewormer for Cats (10% & 20%)

Fenbendazole Liquid Dewormer for Cats is a benzimidazole-class anthelmintic formulated to support the management of susceptible gastrointestinal parasites. Fenbendazole works by binding to parasite tubulin, disrupting glucose uptake and energy metabolism, leading to parasite elimination.

Fenbendazole is widely used in veterinary medicine and is the active ingredient found in products such as Panacur.
In many regions, feline use is considered extra-label and should be directed by a licensed veterinarian.

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Parasites Commonly Addressed in Cats

Fenbendazole is used (under veterinary guidance) for susceptible:

• Roundworms (Toxocara species)
• Hookworms (Ancylostoma species)
• Whipworms (rare in cats but susceptible)
• Certain tapeworms (Taenia species)

⚠️ Not effective against Dipylidium caninum (common flea tapeworm).
⚠️ Not effective against coccidia.

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Common Symptoms of Intestinal Parasites in Cats

Cats with intestinal worms may show:

• Weight loss
• Vomiting
• Diarrhea
• Pot-bellied appearance (especially in kittens)
• Visible worms in stool
• Lethargy
• Poor coat condition

If symptoms persist, veterinary testing (fecal exam) is recommended before treatment.

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Verified Dosage (Cross-Checked by mg/kg Standard)

Standard veterinary reference dose:

50 mg per kg of body weight once daily

1 kg = 2.2 lb
50 mg/kg = 22.7 mg per lb

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If Using 10% Strength (100 mg/mL)

22.7 mg ÷ 100 mg/mL =

✅ 0.23 mL per lb once daily

Administer for 3–5 consecutive days.

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If Using 20% Strength (200 mg/mL)

22.7 mg ÷ 200 mg/mL =

✅ 0.11–0.12 mL per lb once daily

Administer for 3–5 consecutive days.

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Example Dosing (10% Strength)

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Treatment Duration

• Standard: 3 consecutive days
• Giardia cases (veterinary diagnosed): 5 consecutive days

Do not exceed the recommended dose without veterinary instruction.

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Strength Selection Guide

10% (100 mg/mL)

• Easier for small cats and kittens
• More forgiving for precise syringe dosing

20% (200 mg/mL)

• Smaller volume per dose
• Suitable for larger cats

Both strengths deliver the same mg/kg dose when calculated correctly.

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Key Benefits

• Broad nematode coverage
• High safety margin when dosed accurately
• Used in kittens under veterinary guidance
• Can be given directly by oral syringe for accurate intake
• The active ingredient is widely recognized in veterinary medicine

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Safety & Precautions

• Always calculate the dose by the exact body weight.
• Use veterinary guidance for kittens under 6 weeks.
• Not all tapeworm species are susceptible.
• Mild vomiting or soft stool may occur in rare cases.
• Confirm parasite type via fecal testing when possible.

For regulatory guidance on approved animal drug uses, refer to the
U.S. Food and Drug Administration
and professional veterinary recommendations from the
American Veterinary Medical Association.

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FAQs

What parasites does Fenbendazole treat in cats?

It is used for susceptible roundworms, hookworms, whipworms, and certain tapeworm species under veterinary guidance.

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How do I administer it?

Use a dosing syringe directly into the mouth or mix with a small portion of food to ensure full consumption.

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How soon will I see improvement?

Clinical improvement depends on parasite burden. Gastrointestinal signs may improve within several days.

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Is Fenbendazole safe for cats?

When dosed at 50 mg/kg for 3–5 days, it has a wide safety margin in cats under veterinary supervision.

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Can it treat Giardia in cats?

Yes, fenbendazole is commonly used off-label at 50 mg/kg for 5 days when Giardia is diagnosed.

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FOR RESEARCH USE ONLY
Not for human or veterinary diagnostic or therapeutic use.

DISCLAIMER:
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Always consult a veterinarian before administering any product.