Cats recieve 0.9mg/lb of interceptor for heartworm prevention.
Dogs recieve 0.23mg/lb of interceptor for heartworm prevention.

The best answer is by :
grysmn :
More areas to protect. Cats are also more likely to have aberrant migration of heartworm larvae, resulting in infections in the brain or body cavities.http://en.wikipedia.org/wiki/Heartworms#Feline_heartworm_disease

This entry was posted on Friday, July 11th, 2008 at 10:04 am and is filed under Revolution. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.