Best Wormers for Strongyles in Horses: Top Picks
Whether you’re managing a pasture-proofed health plan or treating a growing foal, selecting an effective wormer for strongyles is essential. This guide reviews five widely used horse dewormers, detailing what each product treats, palatability, and dosing considerations to help you decide which option fits your herd. All selections emphasize broad-spectrum activity against large and small strongyles, as well as common intestinal parasites.
| Product | Brand | Key Benefit | Form |
|---|---|---|---|
| Strongid Paste | Strongid | Broad-spectrum control; suitable for foals at 2 months | Paste, 20-ml syringe |
| DuraMectin Ivermectin Paste | Durvet | Effective treatment and control of parasites | Paste, single tube |
| Durvet Ivermectin Paste (3-Pack) | Durvet | Convenient multi-pack for regular rotation | Paste, 6.08 g tubes (3-pack) |
| Safe-Guard Equine Paste | ATEAMIR | Controls large and small strongyles, pinworms, ascarids | Paste, 10% fenbendazole |
| CLENVIA Apple-Flavored Paste | CLENVIA | Palatable, calibrated dosing; treats up to 1250 lb | Paste, 6.08 g tubes (4-pack or 3-pack variants) |
Product selections focus on efficacy against strongyles and commonly co-occurring parasites, ease of administration, and palatability for horses. The table above highlights core attributes to compare as you plan rotation schedules and checkups with your veterinarian.
Strongid Paste Horse Dewormer
Brand: Strongid
Features: Broad-spectrum dewormer that helps control and remove internal parasites in horses and ponies. Effective against mature infestations of large strongyles, small strongyles, roundworms, and pinworms. Suitable for essential treatment of ascarids (roundworms) in foals at 2 months of age. The paste form supports easy administration and quick dosing in various horse sizes.
DuraMectin Ivermectin Paste 1.87%
Brand: Durvet
Features: Ivermectin-based paste providing effective treatment and control of internal parasites. The formulation is designed for horses, supporting convenient dosing in a single-tube format and helping reduce refugia in pastured horses when used as part of a strategic deworming plan.
Durvet Ivermectin Paste 3-Pack
Brand: Durvet
Features: Ivermectin paste in a 3-pack, offering cost-effective, routine deworming options. Useful for rotating with other active ingredients to delay resistance. Each tube provides a standardized dose suitable for a range of horse weights and ages, aligning with typical deworming schedules.
Safe-Guard Equine Paste 10% Fenbendazole
Brand: ATEAMIR
Features: Controls large and small strongyles, pinworms, and ascarids, including fourth-stage larvae of S. vulgaris. Designed for use in horses with an appealing apple-cinnamon flavor to improve palatability. Fenbendazole-based formulation supports broad-spectrum intestinal parasite control within a single-dose regimen.
CLENVIA Apple-Flavored 1.87% Paste
Brand: CLENVIA
Features: Apple-flavored gel for easier administration, calibrated syringe design with weight markings for adjustable dosing, and a 3-pack format containing syringes with caps and plunger-based applicators. Aimed at simplifying accurate dosing for horses while maintaining palatability during treatment.
CLENVIA Apple-Flavored 1.87% Paste (Alternative Pack)
Brand: CLENVIA
Features: Similar apple-flavored gel with calibrated syringe design and triple-pack format, offering flexible maintenance dosing for horses of various weights. This variant supports straightforward administration and consistent dosing across a group of animals.
Buying Guide
Key considerations when choosing a wormer for strongyles include parasite susceptibility, administration ease, palatability, safety for breeding or pregnant mares, and compatibility with rotation strategies to minimize resistance.
- Efficacy spectrum: Look for products that target both large and small strongyles, plus common co-infecting parasites like roundworms and pinworms. Broad-spectrum formulas reduce the need for multiple products.
- Species and life stage coverage: Some formulations are suitable for foals or breeding mares, while others are general-use. Verify age and pregnancy safety specifications with a veterinarian.
- Dosing accuracy: Calibrated syringes and clear weight-based markings help ensure correct dosing, which is critical for effectiveness and safety, especially in mixed-age herds.
- Palatability: Flavored pastes improve administration success, reducing stress for horses and handlers during dosing.
- Rotation strategy: Rotating active ingredients (e.g., ivermectin, fenbendazole) minimizes resistance. Consult a veterinarian to design a rotation that fits your pasture management and parasite pressure.
- Administration form: Paste syringes offer quick dosing for many horses, while paste in multi-packs supports routine rotations. Consider storage, handling, and disposal when selecting a plan.
- Safety and withdrawals: Check for any cautions in breeding or lactating mares and follow label directions. Adhere to withdrawal times if horses are in competition or near food-producing animals.
This collection highlights practical options for equine parasite control, balancing efficacy with ease of use. When in doubt, coordinate with a veterinarian to tailor deworming to your herd’s parasite exposure, pasture management, and overall health goals.