Finding a of Advantage (specifically Advantage II or XD) is most common for cats and prescription variants, while dog treatments are often sold in multi-packs starting at 2 or 4 doses. For all Advantage products, a single dose typically provides 30 days of protection , except for the XD version which lasts for two months . Advantage for Cats
Single doses are widely available for cats, categorized by their weight: buy single dose advantage
(Over 9 lbs): A single dose provides two months of continuous protection. It is available as a 1-count pack at retailers like Petco and Chewy . Finding a of Advantage (specifically Advantage II or
: Retailers like Petco and Pet Supermarket sell 2-packs of Advantage II for medium and large dogs, which are often the smallest retail quantities available for the non-prescription canine formula. It is available as a 1-count pack at
: Prescription "Multi" versions are found at Allivet and PetMeds.