Drug information
Active Ingredient (Generic Name)	Fenbendazole
Indication	Gastrointestinal Parasites
Manufacturer	Kachhela Medex Private Limited
Packaging	10 tablets in 1 strip
Strength	500 mg
Delivery Time	10 To 12 days

Fenbendazole 500 mg is a broad-spectrum anthelmintic (dewormer) primarily used in veterinary medicine to treat and control a wide range of gastrointestinal parasites in animals, especially dogs, cats, horses, cattle, and other livestock.

Key Facts About Fenbendazole 500 mg

1. Common Uses:

• Dogs & Cats: Treats roundworms, hookworms, whipworms, and certain tapeworms.
• Horses: Used for large and small strongyles, pinworms, and ascarids.
• Livestock: Controls parasites such as lungworms, stomach worms, and intestinal worms.

2. Dosage (Typical):

• Depends on the species and body weight.
• In dogs: 50 mg/kg (22.7 mg/lb) daily for 3 consecutive days is a common regimen.
• A 500 mg tablet or powder formulation might be appropriate for medium-to-large animals.

3. Mechanism of Action:

• Fenbendazole works by inhibiting the metabolism of parasitic worms, essentially starving them by interfering with glucose uptake and energy production.

4. Forms Available:

• Tablets, granules, suspensions, and paste.
• 500 mg is often a tablet or powder dose, commonly given in food.

Safety and Side Effects

In animals:

• Usually well-tolerated.
• Possible side effects (rare): vomiting, diarrhea, or lethargy.
• In heavy infestations, worm die-off can occasionally cause mild discomfort or reactions.

In humans:

• Not FDA-approved for human use, but some people have explored off-label or experimental uses (see below).

Off-Label / Human Interest (Controversial)

There has been growing anecdotal interest in Fenbendazole as a potential anti-cancer agent—particularly due to viral stories and unverified reports from individuals claiming success in using it alongside conventional treatments.

• Some lab and animal studies suggest that fenbendazole might disrupt microtubules in cancer cells, similar to chemotherapy drugs like taxol.
• No formal clinical trials or FDA approvals exist for its use in cancer treatment in humans.
• It is strongly advised not to self-medicate with fenbendazole due to lack of safety data, potential toxicity, and dosage uncertainties.

Important Notes

• Veterinary product only: Use under the guidance of a vet.
• Not intended for human use, unless part of a regulated trial or under medical supervision.
• Store properly: Away from heat, moisture, and children.

1. What is Fenbendazole 500 mg used for?

Answer: Fenbendazole 500 mg is a dewormer used in animals to treat various intestinal parasites, including roundworms, hookworms, whipworms, and some tapeworms. It is commonly used in dogs, cats, horses, and livestock.

2. How is Fenbendazole 500 mg administered?

Answer: It can be given orally, usually mixed with food or as a tablet. The dosage depends on the animal’s species and weight. It’s often given for 3–5 consecutive days in dogs and other small animals.

3. Is Fenbendazole safe for all animals?

Answer: When used correctly and under veterinary guidance, it is generally safe for most animals. However, it should not be used in very young, pregnant, or sick animals without a vet’s approval.

4. Are there any side effects?

Answer: Side effects are rare but may include mild diarrhea, vomiting, or lethargy. These symptoms typically resolve without treatment. If symptoms persist, consult a veterinarian.

5. Can humans take Fenbendazole 500 mg?

Answer: No, fenbendazole is not FDA-approved for human use. Some people have experimented with it off-label for conditions like cancer, but this is unproven, unregulated, and potentially dangerous. Always consult a healthcare provider before considering any such use.