K9 Advantix II Medium Dog Vet-Recommended Flea, Tick & Mosquito Treatment & Prevention | Dogs 11-20 lbs. | 2-Mo Supply

Price: $35.68
(as of Oct 23, 2025 23:12:23 UTC – Details)

Introduction to K9 Advantix II Medium Dog

K9 Advantix II Medium Dog is a veterinarian-recommended formula designed to protect dogs against five pests: fleas, ticks, mosquitoes, biting flies, and lice. Unlike other treatments, K9 Advantix II not only kills but also repels fleas, ticks, and mosquitoes, providing comprehensive protection for your dog.

Features

• Broad Spectrum Protection: Protects against fleas, ticks, mosquitoes, biting flies, and lice.
• Fast Acting: Kills fleas on dogs within 12 hours of initial application.
• Prevents Flea Infestations: Stops existing flea infestations and prevents new ones by killing adult fleas on contact.
• Easy Application: Topical, spot-on formula that is simple to apply and goes on in seconds.
• Fragrance-Free and Waterproof: After 24 hours of application, ensuring your dog can enjoy water activities without compromising the effectiveness of the treatment.
• No Prescription Needed: Available over the counter for convenience.
• Suitable for Dogs 11-20 lbs: Specifically designed for medium-sized dogs, weighing between 11-20 lbs, and at least 7 weeks old.

Pros

• Effective Pest Control: Kills and repels a wide range of pests, reducing the risk of discomfort and disease transmission.
• Convenient Application: Easy to apply and does not require your dog to swallow pills or wear a flea collar.
• Waterproof: Allows your dog to swim or get wet without compromising the treatment’s effectiveness after 24 hours.
• Veterinarian Recommended: Backed by professional advice, ensuring it meets high standards of efficacy and safety.
• Available in Various Packs: Offers flexibility with 2-dose, 4-dose, and 6-dose packs, making it easy to maintain monthly treatments.

Cons

• Potential Side Effects: As with any medication, there may be potential side effects, which are detailed on the product label.
• Weight and Age Restrictions: Only suitable for dogs weighing 11-20 lbs and at least 7 weeks old, limiting its use for dogs outside this range.

Product Details

• Product Dimensions: 1 x 4.38 x 4.75 inches; 0.32 ounces.
• Item Model Number: 86314991.
• Department: Flea & Tick.
• Date First Available: January 26, 2014.
• Manufacturer: Elanco US Inc.
• ASIN: B00I2266Y2.
• Best Sellers Rank: #616 in Pet Supplies, #7 in Dog Flea Drops.
• Customer Reviews: 4.4 out of 5 stars, with 32,839 ratings, indicating high customer satisfaction.

K9 Advantix II Medium Dog offers a comprehensive solution for protecting your dog against a variety of pests, with the convenience of easy application and no need for a prescription. Its effectiveness, combined with its waterproof and fragrance-free design, makes it a popular choice among dog owners. However, it’s essential to follow the application instructions carefully and be aware of potential side effects as outlined on the product label.