SENTRY FIPROGUARD CATS ALL WEIGHTS by SENTRY variants 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Please call the store at (434) 392-4192 to place your order. Sentry FiproGuard is a trusted, effective way to kill adult fleas and ticks. It protects your cat against chewing lice as well. For use on cats of all weights, 8 weeks of age and over.