The following article highlights five top pour-on cattle parasiticides available for beef and dairy cattle. Each product section provides key benefits, target parasites, and practical application notes to help producers compare options. A concise Buying Guide follows to support informed purchasing decisions across different farming scales and climates.
| Product | Brand | Size | Key Parasites Targeted |
|---|---|---|---|
| Elanco Cydectin Pour-On Cattle Parasiticide | Elanco | 1 L | Internal parasites, horn flies, lice, cattle grubs, mites |
| Durvet Ivermectin Pour-On for Cattle | Durvet | 1000 mL | Wide spectrum antiparasitic, internal and external parasites |
| Elanco Cydectin Pour-On Cattle Parasiticide (2.5 L) | Elanco | 2.5 L | Internal parasites, external pests including flies and mites |
| CyLence Pour-On Insecticide | Elanco | 1 Pint | Flies, lice (including face and horn flies) |
| Atticus Gardatis Pour-On Insecticide with IGR | Atticus | 0.5 Gal | Flies, ticks, lice with insect growth regulator activity |
Elanco Cydectin Pour-On Cattle Parasiticide 1 L

Elanco Cydectin Pour-On is a ready-to-use parasiticide intended for beef and dairy cattle. It targets a broad range of internal parasites and several external pests, providing practical control for common farm challenges. The product uses moxidectin as its active ingredient, offering a weatherproof formula with visible purple dye to indicate treated animals, helping manage administration across larger herds. In addition to internal parasites like brown stomach worms and lungworms, Cydectin also helps reduce horn flies, lice, cattle grubs, and mites, supporting overall herd health and productivity.
Key features include a comprehensive treatment spectrum (13 internal parasite species and multiple larval stages) and an emphasis on ease of use in outdoor or barn settings. The purple dye makes it easier for workers to verify coverage after application, which can improve treatment compliance. As with all pour-ons, dosage and withdrawal times should align with veterinary guidance and local regulations. The 1 L size is suitable for medium herds and periodic use as part of an integrated parasite management plan.
Durvet Ivermectin Pour-On for Cattle 1000 mL

Durvet Ivermectin Pour-On for Cattle provides a straightforward, ready-to-use solution for cattle health management. Ivermectin targets a broad range of internal and external parasites, helping simplify preventive care in pasture-based systems. The product is designed for ease of application across herds, with a focus on practical administration in various age groups of cattle. While it is widely used in beef and dairy operations, users should follow label directions for dosage and intervals to prevent resistance and ensure effective parasite control.
Key considerations include compatibility with a range of production systems, from small family farms to larger operations, and the need to monitor withdrawal times for milk and meat in accordance with regulatory guidelines. The 1000 mL bottle size is convenient for regular rotation or use alongside other parasite control strategies. As with other pour-ons, careful cattle handling and application technique influence the effectiveness of treatment and overall herd wellbeing.
Elanco Cydectin Pour-On Cattle Parasiticide 2.5 L

Elanco’s Cydectin Pour-On in a larger 2.5 L size offers extended coverage for larger herds or operations seeking fewer re-treatments. The product is formulated to tackle internal parasites as well as external pests such as horn flies, lice, cattle grubs, and mites. The active ingredient remains moxidectin, combined with a weatherproof formula and a visual dye to identify treated cattle, supporting efficient management on ranches with varying weather conditions.
This variant is suitable for producers who prefer bulk dosing intervals and want to maintain a steady parasite control program across larger cattle populations. As with other pour-ons, adherence to dosage guidelines and veterinarian recommendations is essential to minimize resistance and ensure effective parasite suppression over time. The 2.5 L size provides cost-per-dose advantages for high-demand seasons while maintaining application practicality.
CyLence Pour-On Insecticide 1 Pint

CyLence Pour-On Insecticide provides targeted control of flies and lice, focusing on cattle in both beef and dairy operations. It is a ready-to-use solution that minimizes handling and preparation time, requiring only a small amount per treatment. The product is suitable for use year-round across various cattle ages and sizes, offering practical flexibility for producers managing fly pressure and lice infestations in diverse climates.
The formulation supports effective knockdown of pests with a straightforward pour-on application. For ranchers prioritizing quick-acting, easy-to-use insect control, CyLence can be integrated into routine parasite management alongside other dewormers as part of an integrated pest strategy. Always consult the label for complete guidance on dosage, timing, and any animal safety considerations.
Atticus Gardatis Pour-On Insecticide with IGR 0.5 Gal

Gardatis Pour-On from Atticus combines permethrin and diflubenzuron (IGR) to combat flies and lice on cattle and horses. The dual-active formula delivers both immediate insecticidal action and growth regulation to reduce egg viability and larval development. The 0.5 gallon bottle provides practical dosing for medium-sized herds, with a ready-to-use format that minimizes preparation steps and handling time during routine health management.
Key considerations include its broad spectrum against face flies, horn flies, various lice, and ticks, along with the added benefit of an IGR to curb reproduction. As always, follow label directions for application rates and safety precautions, and consider regional parasite pressures when integrating Gardatis into a broader parasite control program.
Buying Guide: Key Purchase Considerations
- Target parasites: Match the product to the primary parasites in your region, including internal parasites (worms) and external pests (flies, lice, ticks).
- Size and herd needs: Choose bottle sizes that align with herd size, rotation plans, and budget for the season. Larger containers can reduce cost-per-dose but require storage considerations.
- Active ingredients: Moxidectin-based formulations provide broad coverage; ivermectin offerings offer a wide range of efficacy. Consider resistance history and veterinary guidance when selecting.
- Ease of use: Ready-to-use pour-ons save handling time. Look for visible indicators (like dye) that help confirm coverage across treated cattle.
- Seasonality and climate: Some products may perform differently with humidity, rain, or heat. Ensure your choice suits your climate and typical grazing patterns.
- Integrated parasite management: Use pour-ons as part of a broader strategy including pasture rotation, sanitation, and strategic deworming schedules to minimize resistance development.
- Regulatory and withdrawal times: Always follow label directions and local regulations to manage milk and meat withdrawal periods appropriately.