Panacur Powerpac Fenbendazole Paste Wormer 5-Dose

List: $82.99
Today's savings: 8%

Sometimes, manufacturers require that products be advertised only at their suggested prices. When we choose to sell these items for less, we display the sale price only in the cart. To see the price, click Add to Cart.

Panacur Powerpac Fenbendazole Paste Wormer 5-Dose


In Stock. Usually Ships 1-2 business days.

Shipping weight = 1.50 lbs.


Product Summary:

Merck Panacur® POWERPAC Paste Wormer

Safe for all ages and breeds of horses, the Panacur® POWERPAC of five syringes offers a complete course of treatment for a 1250-pound horse in convenient, oral administration, with a unique apple-cinnamon flavor that is highly palatable. The broad coverage in this incredible wormer is even safe for 5-day regiment needs for those horses with severe worm issues or those that are sensitive to wormers. You will see coat results in a few short days after treatment.

Panacur® has a high degree of efficacy against all stages of encysted (hypobiotic) small strongyles. It is an approved method of larvicidal treatment for encysted EL3s and L3/L4s, 98% effective in killing hypobiotic encysted EL3s, 96% effective against L3/L4s, and highly effective against the predominant internal parasites of horses: large strongyles, small strongyles (encysted early third stage cyathostomes), late third stage and fourth stage mucosal cyathostome larvae, pinworms, ascarids and arteritis caused by fourth stage larvae of strongylus vulgaris in horses.

Note: This item is not available to ship to Canada.


  • Safe for foals and pregnant mares, older horses, thin and underweight horses, miniature horses, the environment and for use around other farm animals and pets
  • Labeled for the control of large and small strongyles (including migrating larvae), pinworms and ascarids (roundworms)
  • The only FDA-approved treatment for all stages of encysted small strongyles
  • Widely recognized as the product of choice for treating ascarids in young horses
  • May be effective even in the face of prior fenbendazole resistance when used as part of a strategically designed anthelmintic program
  • Antiparasitic action is due to the inhibition of energy metabolism in the parasite
Item Specifications:

57g syringes (5 per carton)

10% (100mg/g) fenbendazole paste

Administration and Dosage:
Panacur (fenbendazole) Paste 10% is administered orally at a rate of 2.3mg/lb (5mg/kg) for the control of large strongyles, small strongyles, and pinworms. One syringe will deworm two 1,250 lb. horses. For foals and weanlings (less than 18 months of age) where ascarids are a common problem, the recommended dose is 4.6mg/lb (10mg/kg); one syringe will deworm one 1,250 lb. horse.
For control of encysted early third stage (hypobiotic), late third stage and fourth stage cyathostome larvae, and fourth stage larvae of Strongylus vulgaris, the recommended dose is 4.6mg/lb (10mg/kg) for five consecutive days; administer one syringe for each 1,250 lb. of body weight per day.
Use in all newly arrived horses and then once or twice per year. Consult your veterinarian for assistance in the diagnosis, treatment and control of parasitism.


Do not use in horses intended for human consumption. When using Panacur (fenbendazole) Paste 10% concomitantly with trichlorfon, refer to the manufacturer’s labels for use and cautions for trichlorfon.

For additional product information, please see clickable links listed under Downloadable Resources.  


Downloadable Resources
Item Number Model Number UPC
SLT790107 017754 021784471572
Additional Information:

Product Reviews by Customers

Browse Questions and Answers

By Continuing to use our site, you consent to our use of cookies to improve your experience. Learn more