FRONTLINE Tri-act L 20-40 kg - Parasite drops for dogs - 3 x 4 ml

Parasites like fleas, ticks, sandflies, and mosquitoes are more than a nuisance—they can transmit serious diseases to your dog. FRONTLINE Tri-act L provides a powerful monthly spot-on treatment tailored for large dogs weighing 20–40 kg, combining three active ingredients to kill and repel a broad spectrum of parasites. Each pack contains three 4 ml pipettes, offering three months of protection.

Who is it for

This product is for owners of large breed dogs (20–40 kg) aged 8 weeks and older who need reliable, vet-strength parasite control. It is ideal for dogs that spend time outdoors, in areas with high tick or sandfly populations, or in households with multiple pets (excluding cats—see precautions).

Main features

• Triple-action formula: fipronil kills fleas and ticks, permethrin repels and kills sandflies, mosquitoes, and stable flies, and an additional component enhances efficacy.
• Broad-spectrum protection: effective against fleas, ticks, sandflies, mosquitoes, and stable flies.
• Long-lasting: kills fleas and ticks for up to 4 weeks; repels sandflies and mosquitoes for up to 3–4 weeks.
• Convenient monthly application: one pipette per month, applied directly to the skin.
• Water-resistant: remains effective after bathing or swimming (once dry).
• Easy-to-use pipettes with clear dosage markings for accurate application.

Specifications

• Product type: Ectoparasiticide spot-on solution
• Target species: Dogs
• Weight range: 20–40 kg
• Dosage form: Spot-on pipette
• Number of doses: 3 pipettes
• Volume per pipette: 4 ml
• Active ingredients per pipette: Fipronil 270.4 mg, Permethrin 2019.2 mg
• Parasite protection: Fleas, ticks, sandflies, mosquitoes, stable flies
• Flea efficacy duration: Up to 4 weeks
• Tick efficacy duration: Up to 4 weeks
• Repellent efficacy duration (sandflies/mosquitoes): Up to 3–4 weeks
• Application frequency: Monthly
• Minimum age for use: 8 weeks
• Minimum weight for use: 20 kg
• Application method: Topical (on skin)
• Packaging type: Blister pack
• Manufacturer: Boehringer Ingelheim Animal Health
• Veterinary prescription required: No (over-the-counter in many regions)

Tips

Apply the entire contents of one pipette directly onto the skin between the shoulder blades, where your dog cannot lick it off. Part the fur to ensure the liquid reaches the skin. Do not bathe your dog for 48 hours after application. Keep treated dogs away from cats, as permethrin is highly toxic to felines. Store in a cool, dry place away from children and pets.