拜耳 蚤安超大型体外驱虫滴剂适用体重25-40公斤 4支装 Advantage 400 (Blue) Spot on For X-Large Dogs 25-40kg (over 55lbs), 4 Pack

Advantage Blue For Dogs Over 55lbs (25kg) is a spot-on that is applied on the back of your dog's neck once a month for the treatment and prevention of fleas. Simply squeeze the contents of the tube onto the skin on the back of your pet's neck. Advantage then spreads over your pet, remaining in the oily layer of the skin, where it is effective against fleas all month long. Best of all, fleas don't have to bite your pet to be affected, so with Advantage your pet suffers less of those painful flea bites.

The top benefits of Advantage:

• Fast relief of painful bites - Stops fleas biting in 3-5 minutes and kills adult fleas and flea larvae within 20 minutes of contact
• Prevents development of further fleas - Kills 98%-100% of fleas before they lay eggs and prevents infestation if your treated pet comes into contact with other pets with fleas
• Long-lasting and easy to use - Drop Advantage on the back of your pet to protect them from fleas for 1 month