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Originally Posted by 107barney  It's labeled as safe for dogs up to 22 lbs. However, I use half doses and have for a long time and never have had a flea or tick. |
Same here when I used it.
Now we use Revolution it is both heart worm and flea pill given once a month. We have No Fleas, and we live in Fl. a flea problem area year round.
It is my understanding that Revolution or Comfortis can not be given to dogs under 5 lbs. Also my vet does not recommend it for breeding bitches or studs, it may affect fertility or cause other problems.