Farnam Swat Fly Ointment for Horses & Dogs 7 oz — Pyrethrin Fly Repellent & Wound Barrier

Farnam 7OZ Swat Fly Ointment is a topical pyrethrin-based ointment that repels and kills flies while protecting superficial wounds, sores and scratches on dogs, horses and ponies.

Designed for animals that are vulnerable to fly irritation, this ointment combines botanically-derived pyrethrins with stabilizers to defend open wounds against filth and disease-carrying flies. The thick, ointment formula stays in place, making it practical for facial areas and ears where flies commonly congregate. It’s formulated to both repel and neutralize house, face, horn and stable flies and can be used to treat minor abrasions and superficial skin injuries.

How does this ointment protect wounds from flies?

The formula contains pyrethrins, an insecticidal compound derived from chrysanthemum flowers, paired with piperonyl butoxide which enhances effectiveness. Applied to superficial wounds, the ointment forms a protective, sticky barrier that deters flies and reduces the chance of wound contamination. It’s intended for short-term topical protection rather than deep or systemic treatment.

• Creates a barrier over minor wounds, abrasions and sores
• Repels and kills common fly species on contact
• Works well on facial areas and ears where flies gather
• Stays in place for hours under normal conditions

Can I use this on my horse or dog’s face and ears safely?

Yes — the ointment is formulated for use on facial areas and ears for dogs, horses and ponies. Because the texture is thick, it adheres to skin and hair without running into the eyes when applied carefully. Always avoid direct eye contact and use a small amount around sensitive areas, monitoring the animal for irritation after first use.

• Suitable for ears, muzzle and other facial spots
• Apply sparingly and avoid the animal’s eyes and mouth
• Check the area for any unusual reaction after application

What active ingredients are in the 7 oz Swat Fly Ointment and what do they do?

The active components include pyrethrins (0.2%), piperonyl butoxide technical (0.5%), and propylisocinchomeronate (1.0%). Pyrethrins are the primary insect-repelling and insecticidal agents; piperonyl butoxide boosts pyrethrin activity; propylisocinchomeronate supports formulation stability and spreadability. The remainder of the product is inert ingredients that give the ointment its protective texture.

• Pyrethrins: botanical insecticidal agents
• Piperonyl butoxide: synergist that increases effectiveness
• Propylisocinchomeronate: helps with formulation performance
• Inert ingredients: provide thick, long-adhering ointment base

How should I apply the ointment and how long does it last?

Clean the wound gently and apply a thin layer of ointment directly to the affected area, reapplying as needed based on activity and exposure. The thick consistency is intended to remain effective for hours, but heavy rubbing, rain or sweat can reduce longevity so reapplication may be necessary. This product treats superficial wounds — consult a veterinarian for deeper or infected injuries.

• Apply to clean, dry superficial wounds and surrounding skin
• Use small amounts on facial and ear areas to avoid eye contact
• Reapply after heavy exposure, swimming, or excessive rubbing

Who is this for: Farnam 7OZ Swat Fly Ointment is aimed at animal owners and caretakers who need a dependable topical product to shield minor wounds, sores and scratches from flies. It’s useful for horse owners, pony keepers and dog guardians who want a thick, easy-to-apply ointment that repels and kills common flies and remains effective on facial areas and ears. Not a substitute for veterinary care of severe wounds, infections or internal conditions; seek professional advice when wounds are deep, persist, or worsen.