Let's say you have two small dogs - maybe Yorkshire Terriers or Chihuahuas. The box of heartworm prevention medication for your dogs clearly says that the medicine is good for dogs that are 0-25 pounds, or something similar to that effect. Well, why not just split the medicine between your two dogs? Both of their weight doesn't even add up to 25 pounds so it should be fine... right?
|Photo via David Fulmer|
Maybe, but chances are this is probably not safe if you're doing this sort of thing on a long term basis. Why? The reason why you should not split your dog's heartworm prevention pills is quite simple.
Most heartworm prevention pills are formulated into some sort of tasty soft chew or flavored tablet. They are also mixed with the medicine that prevents heartworms or other parasites. If you split the medicine in half, one half could have all of the medicine and the other half could have no medicine in it. While the pill has a full dose of the necessary drugs contained within it, the drugs are not evenly distributed throughout the entire pill.
I've had to advise a few clients in the past against doing this. Most never even thought about this before it was explained to them. Fortunately, splitting dog heartworm prevention seems to only be a popular idea for small dogs. I know at first thought it seems like it would be a great way to save money but it's just not worth it. Prevention is always cheaper than treatment!
If you want to save money, you can always try buying "generic" versions of more expensive heartworm medication brands.
If you're trying to decide on a good heartworm medication for your pet, check out our list of heartworm prevention medications and find one that's right for your pet's needs. "Generic" brands are included on this list!