Product Review

CrossBlock II for Cats treats and prevents flea infestation on cats and kittens 8 weeks of age and older. Active ingredients include: Imidacloprid 9.10% and Pyriproxyfen 0.46%. Kills adult fleas and prevents further re-infestation on cats Kills re-infestation fleas within 2 hours Breaks the flea life cycle and prevents flea eggs and larvae from developing into adult fleas Waterproof after application Effective for one month See package insert for complete product details. Package contains 3 doses for 3 months of coverage.