Panacur Horse and Cattle Dewormer Suspension, 1 Gallon | On Sale | EntirelyPets Rx
Licensed U.S. Pet Pharmacy | Verified Pharmacy
Mobile Menu
Search Submit
Live Chat My Account
View Cart 0

Sitewide SALE!  GET 15% Off!  Use Code EPX15 *

  • Product ImageProduct Image

Panacur Horse and Cattle Dewormer Suspension, 1 Gallon

Item# IWM009942
FREE SHIPPING Over $79! * Pet Food & Other Exclusions

Price too low to show

Add to cart to see low price
  1. We'll ask for your vet's info during check out.
  2. We'll verify your prescription and ship your order! Learn more >>
Recurring Saings in EprxAUTOSHIP & SAVE[Details]
Recurring Saings in EprxAUTOSHIP & SAVE[Details]
  • Description
  • Directions
  • FAQ
  • Reviews


Panacur Suspension works as a dewormer for the control of large strongyles, small strongyles, and pinworms. It is safe for foals and pregnant mares, older horses, thin and underweight horses or miniature horses. Panacur Suspension for Horses should be administered orally, and retreatment may be needed after 4 to 6 weeks if exposure to parasites continues.

Key Benefits

  • Available from your veterinarian
  • For removal and control of lungworms, stomach worms and intestinal worms
  • Easy-to-use applicator gun for accurate and stress-free deworming
  • One liter deworms 43,478 lb. of cattle
  • One gallon deworms 164,565 lb. of cattle
  • 2.33cc/100 lb. of cattle

How It Works

This anti-parasitic works by eradicating infesting organisms from your animal’s intestinal regions. The parasites exit via excremental release.


Panacur Suspension 10% is for treatment and control of lungworms, stomach worms, intestinal worms and tapeworms in cattle and for the control of large and small strongyles and pinworms in horses.

Panacur Suspension is a registered trademark of Intervet Inc., d/b/a Merck Animal Health, a subsidiary of Merck & Co. Inc.


View Panacur Suspension product label.


5 mg/kg (2.3 mg/lb) for the control of large strongyles (Strongylus edentatus, S. equinus, S. vulgaris, Triodontophorus spp.), small strongyles (Cyathostomum spp., Cylicocyclus spp., Cylicostephanus spp., Cylicodontophorus spp.), and pinworms (Oxyuris equi).

Example: 2.3 mL/100 lb; 23 mL/1000 lb

10 mg/kg (4.6 mg/lb) for the control of ascarids (Parascaris equorum).

Example: (10 mg/kg); 2.3 mL/50 lb; 23 mL/500 lb

Beef and Dairy Cattle:

5 mg/kg (2.3 mg/lb) for the removal and control of:

Lungworm: (Dictyocaulus viviparus).

Stomach worm (adults): Ostertagia ostertagi (brown stomach worms). Stomach worm (adults & 4th stage larvae): Haemonchus contortus/placei (barberpole worm), Trichostrongylus axei (small stomach worm).

Intestinal worm (adults & 4th stage larvae): Bunostomum phlebotomum (hookworm), Nematodirus helvetianus (thread-necked intestinal worm), Cooperia punctata and C. oncophora (small intestinal worm), Trichostrongylus colubriformis (bankrupt worm), Oesophagostomum radiatum (nodular worm).

Beef Cattle Only

10 mg/kg (4.6 mg/lb) for the removal and control of:

Stomach worm (4th stage inhibited larvae): Ostertagia ostertagi (Type II Ostertagiasis).

Tapeworm: Moniezia benedeni.

Do not use in dairy cattle at 10 mg/kg

In beef and dairy cattle, the recommended dose of 5 mg/kg is achieved when 2.3 mL of the drug are given for each 100 lb of body weight. In beef cattle only, the recommended dosage of 10 mg/kg for the treatment of Ostertagiasis Type II (inhibited 4th stage larvae) or tapeworm is achieved when 4.6 mL of the drug is given for each 100 lb of body weight.

Examples: (Horses and Cattle)

Dose (5 mg/kg) Dose (10 mg/kg) Animal Weight
2.3 mL 4.6 mL 100 lb
4.6 mL 9.2 mL 200 lb
6.9 mL 13.8 mL 300 lb
9.2 mL 18.4 mL 400 lb
11.5 mL 23.0 mL 500 lb
23.0 mL 46.0 mL 1,000 lb
34.5 mL 69.0 mL 1,000 lb

Beef and Dairy Cattle and Horses:

Determine the proper dose according to estimated body weight. Administer orally by suitable dosing syringe. Insert nozzle of syringe through the interdental space and deposit the drug on the back of the tongue by depressing the plunger. The drug may also be administered by stomach tube. There are no known contraindications to the use of the drug in cattle or horses. For dairy cattle, there is no milk withdrawal period at 5 mg/kg. Panacur (fenbendazole) Suspension 10% is approved for use concomitantly with an approved form of trichlorfon. Trichlorfon is approved for the treatment of stomach bots (Gasterophilus spp.) in horses. Refer to the manufacturer’s label for directions for use and cautions for trichlorfon.

Regular deworming at intervals of six to eight weeks may be required for horses.

Under conditions of continued exposure to parasites, retreatment may be needed after 4-6 weeks.


Federal law restricts this drug to use by or on the order of a licensed veterinarian.

Keep this and all medication out of the reach of children.

Residue Warnings:

Do not use in horses intended for human consumption. Cattle must not be slaughtered for human consumption within 8 days following treatment. For dairy cattle, there is no milk withdrawal period at the 5 mg/kg dose. Do not use at 10 mg/kg in dairy cattle. Dose rate of 10 mg/kg is for beef cattle only. Dose rate of 10 mg/kg in dairy cattle could result in violative residues in milk. A withdrawal period has not been established for this product in pre-ruminating calves. Do not use in calves to be processed for veal.


Panacur is a prescription medication used to control and remove roundworms, hookworms, whipworms, and certain tapeworms.
  • Controls roundworms, hookworms, whipworms and certain tapeworms
  • Powder form allows for accurate dosing
  • Excellent safety profile
Panacur oral dewormer contains fenbendazole, which kills parasites by disrupting their energy metabolism.
Panacur is given orally and mixed with a small amount of food. Always follow the dosage instructions provided by your veterinarian. If you have difficulty giving the medication, contact your veterinarian. In most cases, it must be given for multiple consecutive days.
Panacur will safely remove roundworms, hookworms, whipworms, and Taenia pisiformis (a tapeworm). It will not prevent reinfection with these parasites.

Have your veterinarian explain the other treatment options that may be available to treat your pet's condition.

Some intestinal parasites, such as hookworms and roundworms can be spread to people. Talk to your veterinarian about other measures you can take to prevent your pet from being infected with intestinal worms, and protecting yourself.

Notify your veterinarian of any other medications or supplements your pet is receiving. Also tell your veterinarian if your pet has had any reactions to previous medications.

If you miss a dose, give it as soon as you remember. If it is almost time for the next dose, skip the one you missed and go back to the regular schedule. Do not give two doses at once. Contact your veterinarian to determine if additional doses will be needed.
Panacur is mixed with the food, so it is very important that the pet eat all of the food and consume all of the Panacur.
Not for use in animals who are hypersensitive (allergic) to it.

Rare. May see vomiting.

If your pet experiences an allergic reaction to the medication or has a reaction to the dying parasites, signs may include facial swelling, hives, scratching, sudden onset of diarrhea, vomiting, shock, seizures, pale gums, cold limbs, or coma. If you observe any of these signs, contact your veterinarian immediately.

Panacur is a very safe drug. Adverse reactions and toxicities are unlikely. If you know or suspect your pet has had an overdose, or if you observe any unusual signs, symptoms, or behaviors, contact your veterinarian immediately.
Notify your veterinarian of any other medications, including vitamins and supplements, your pet is taking while your pet is receiving fenbendazole. There are no known drug or food interactions.
Store at room temperature in a tight, light-resistant, childproof container. Keep out of reach of children and pets.

Customers Who Bought Also Bought