My cat got underdosed Frontline. Can I reapply safely for fleas?

Question

I applied Frontline plus on my cats 2 weeks ago and I thought they were only 6lbs. Today i weighed them and learned they're actually 17lbs. Can i apply a new dose for their correct weight? We still clearly have a flea problem. Pet's info: Cat | Mixed Breed | Male | neutered | 17.8 lbs

Destini R. Holloway, DVM · Accepted Answer

Yes it is safe to reapply most topical flea preventatives every 2 weeks if needed. This should be fine and safe to do since you are 2 weeks out. However, if you are still seeing fleas after this correct dosing, it is best to consider switching to a more effective product such as Revolution. Best of luck with your cats moving forward and keeping the fleas away. Take care.

My cat got underdosed Frontline. Can I reapply safely for fleas?

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