Program for Dogs 21-45 lbs and Cats 7-16 lbs, 12 Month (Yellow) contains Lufenuron which is classified as an insect development inhibitor (IDI). The active ingredient in Program flea control stops immature fleas and flea eggs from developing to end the flea life cycle.

• Month-long protection against flea infestations
• Lufenuron in Program inhibits the development of fleas
• Manufacturer information and usage

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