Benefits: Starts killing fleas in 30 minutes Kills 98-100% of fleas within 12 hours Continues to kill fleas for a full month after application Easy-to-use, non-greasy topical solution Gentle on cats and kittens 8 weeks of age and older Cautions: For cats and kittens only. For external use only. Do not use on kittens less than 8 weeks of age or weighing less than 1.8 lbs. Do not allow your cat to ingest this product. For cats weighing over 20lbs, using more than 1 single dose is not advised. As with any product, consult your veterinarian before using this product on debilitated, aged, pregnant or nursing animals or animals known to be sensitive to pesticides. Possible Side Effects: Monitor your cat after application. Side effects may include reactions such as application-site hair loss, hair change (greasy, clumping or matting) or redness, inflammation, and itching. Other side effects, such as inactivity, vomiting and inappetence have also been reported.1;If these or any other side effects occur, consult your veterinarian, your cat's health care expert Cheristin Topical Flea Treatment for Cats Over 1.8 lbs 6 Doses. I do not receive this product or any others in exchange for this article, I do get a commission for readers clicking the buy now links which helps to differ the cost of hosting this blog and I sincerely hope this article site helps you with your search for Vet Approved Rx products.