https://community.qvc.com/t5/Community-Chat/Trifexis/m-p/184425#M78613 <P>I just wanted to post that I had used Heartgard for years and my vet suggested that I change to Trifexis as it contains the medication for both heart worm and fleas. My dog did ok for a few months, then one month she threw up. The next month, on the day I gave it to her she was extremely lethargic. I have decided to go back to the Heartgard. I used if for years with no problems. Has anyone else had problems with Trifexis?</P> Thu, 12 Apr 2012 02:31:58 GMT conlt 2012-04-12T02:31:58Z https://community.qvc.com/t5/Community-Chat/Trifexis/m-p/184425#M78613 <P>I just wanted to post that I had used Heartgard for years and my vet suggested that I change to Trifexis as it contains the medication for both heart worm and fleas. My dog did ok for a few months, then one month she threw up. The next month, on the day I gave it to her she was extremely lethargic. I have decided to go back to the Heartgard. I used if for years with no problems. Has anyone else had problems with Trifexis?</P> Thu, 12 Apr 2012 02:31:58 GMT https://community.qvc.com/t5/Community-Chat/Trifexis/m-p/184425#M78613 conlt 2012-04-12T02:31:58Z