
Product Insights
Frontline Combo Spot-on for dogs weighing 20-40 kg is a 2.68 ml topical treatment that combines the insecticides fipronil and (S)-methoprene to quickly kill adult fleas and provide lasting protection against ticks. The product is water-resistant and designed for a single monthly application, delivering convenient long-term ectoparasite control for medium-to-large dogs. However, it contains synthetic chemicals that can be toxic if ingested or mishandled, may cause skin irritation in sensitive animals, and must never be used on cats or other species.
Comparative Analysis
In the crowded dog ectoparasite market, Frontline Combo Spot-on stands out by offering a dual-action formula that eliminates adult fleas instantly while preventing tick attachment for up to four weeks, a combination not always found in single-ingredient spot-ons.
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Frequently Asked Questions
Everything you need to know about Frontline Combo Spot-on Caes L 20-40kg.







