Is Trifexis safe? Are the internet rumors of Trifexis side effects true?

Trifexis Side Effects

Added December 2012: This article has collected a LOT of comments from people concerned about Trifexis side effects. I am torn on how to report on this issue. The fact that hundreds of you feel that Trifexis has been harmful to your pet is disturbing. However, if Trifexis is causing these serious side effects then I should be able to find a lot of discussion about this on places like Veterinary Information Network where tens of thousands of vets talk about their cases, and I am not. If your pet has suffered Trifexis side effects then PLEASE have your veterinarian file a report with the FDA.  If there is a problem with the medication the only way the FDA will act is if they get enough reports of Trifexis side effects from veterinarians.

Original article starts here:

Trifexis is a relatively new heartworm and flea medication.  I have been prescribing a lot of it this year and it seems to be quite effective.  But recently I have heard a number of people on the internet complaining of possible serious Trifexis side effects.  So, is it true? Does Trifexis have serious side effects? Is Trifexis safe? (more…)...

Is Heartgard safe for collies?

You are likely aware that there is a shortage of Interceptor and Sentinel right now.  I have had several comments on my post about the Novartis shortages from people who are upset because they have a breed of dog who is sensitive to ivermectin and they feel that Interceptor and Sentinel are the only drugs that are safe to use for heartworm prevention for their dogs.  I wanted to write a post to explain why this is not true. (more…)...