Quote:
Originally Posted by TobyOliver  We use Trifexis, it prevent heart worms and intestinal worms also. We bought one pill from our vet for $22, but it will last Toby for 4 month because of his size, so it isn't too bad. |
Just to let you know there is currently no pill form of heartworm preventive that last 4 months. Dogs under 5 lbs can't take this. You should never split their heartworm preventive up as it is not equally throughout the pill.