How long is advantage good for?

One convenient application of Advantage II cat flea treatment keeps working for 1 month. If your cat still has fleas after the 1 month, we’d recommend treatment for another month until the fleas are gone.Click to see full answer. Then, does Advantage flea medicine expire?A. Advantage® II does not expire.Similarly, how long does Advantage Multi last? Application Recommended age of application Advantage Multi Topical; effective 1 month 7 weeks and older; 3 pounds minimum Trifexis Oral; effective 1 month; kills fleas within 30 minutes 8 weeks and older; 5 pounds minimum Subsequently, question is, how long before fleas die with advantage? Advantage II for Cats kills fleas within 12 hours and reinfesting fleas within 2 hours. Having and getting rid of fleas can be an unpleasant ordeal for both you and your cat.How often can I use Advantage flea treatment?Oral flea products are active in the bloodstream, and fleas must attach and feed to be killed. How often should I use Advantage? It is recommended that you apply Advantage to your dog once a month all year round.