A simple monthly pill would have given him 10 more good years! (fohari.org)
From monthly pills, to monthly topicals, and even a shot that prevents it for 6 months, there are many ways to decide how to protect your pet! (semopets.org)
Another early IGR called lufenuron (once monthly pills) inhibits the development of the exoskeleton of the flea and sterilizes the bug so it can't reproduce. (thesprucepets.com)