Horse Care Dewormers

Choose based on the horse's age, weight, fecal egg count (FEC), and history of prior treatments; select a product labeled for the specific parasites you need to control (e.g., strongyles, tapeworms, bots) and follow dosage instructions by body weight

Deworming frequency depends on risk factors and FEC results; many programs use targeted treatments guided by periodic FECs (commonly every 8–12 weeks for high-shedders) rather than fixed calendar schedules for all horses

Follow the product label for maximum dose, contraindications (young, pregnant, or debilitated animals), and any recommended meat or milk withdrawal times; consult your veterinarian before treating broodmares, foals, or horses with health issues

Formulations include paste, gel, liquid, and oral powders; pick the formulation that allows accurate dosing by weight and that you can administer reliably to your horse while ensuring the active ingredient matches the targeted parasites

Overuse of the same active ingredient promotes resistance; reduce risk by using FEC monitoring to target treatments, rotating drug classes only when indicated, and consulting a veterinarian for a herd-specific plan

Prices vary by formulation, active ingredient, and pack size; expect a range from lower-cost budget options under $50 to higher-cost multi-dose or specialty products, with many common products clustering around mid-range prices

Some dewormers are available over the counter while others require a veterinary prescription depending on the active ingredient and local regulations; check product labeling and local rules or consult your veterinarian