Hi, I've got 2 Yorkies. Halle, who's now 2 yrs. (adopted from ASPCA in Nov) & Spike, who's 11 mo. (adopted in April). We've been using Revolution topical for their flea prevention & heartworm (it also does a bunch of other stuff), & we haven't had a problem. I get the Revolution from a mail order pharmacy, which we've never had a problem, at a price you can't beat. We do treat year round as we're in MD. Some winters are very cold but some, like last year, was very mild. Not cold enough to kill off bugs. |