Shop / Flea and Tick / Frontline Plus for Medium Dogs Frontline Frontline Plus for Medium Dogs 23 44 lbs 3 Month $42.99 23-44 lbs - 3 Month Purchase Options Free In-Store Pick Up Not Available Set your store for inventory and store pickup details Zip Code Search Same-day Delivery* No minimum charge for delivery orders. *Order before 2pm and have it delivered today. Orders placed after 2pm will be delivered the next day. Must be inside delivery radius. Zip Code Unfortunately delivery is not available to this address. In order to ensure the best availability accuracy, changing your selected store will remove all items from your cart. You will need to re-add these items with your newly selected store if you choose to continue. Continue Cancel Ship it to Me Not Available Quantity Add To Cart Information Ingredients For dogs 8 weeks or older weighing 23 - 44 lb. No prescription required! Frontline Plus is a monthly topical flea and tick preventative for dogs. Frontline Plus kills 100% of adult fleas on your pet within 18 hours and 100% of all ticks and chewing lice within 48 hours. Frontline Plus contains an insect growth regulator, S-methoprene, which kills flea eggs and larvae. It's effective against all stages of the brown dog tick, the American dog tick, the lone star tick and the deer tick (the major carrier of Lyme disease). EPA approved product guaranteed from the manufacturer, Merial Fipronil: 9.8% (S)-methoprene: 8.8% Inert Ingredients: 81.4% Customers also liked Customer Reviews