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Originally Posted by Contance  Having worries with my babies flea medicine . (Trifexis ) My smallest baby started throwing up just 20 minute's after taking it . She is 4 pounds and vet said to give her the full pill . I had been only giving her 1/2 a pill . Thinking of going herbal instead of the trifexis. Need help. Really need good advice |
There are lots of reports if negative reactions to Trifexis. I would discontinue it immediately and switch to a different brand of heartworm and flea and tick preventative. For heartworm, we have been using Heartgard for a few years and haven't had any problems.