Ingleburn Veterinary Hospital
Unit 4/2 Noonan Road
The prevention of heartworm disease is one of the most important things that you must do for the health of your dog. Heartworm is the most serious of all the worms, and intestinal ‘allwormer’ tablets do not prevent heartworm infection. If you own a dog, then you must have him/her on regular heartworm prevention medication, from 6 weeks of age, for the rest of his/her life – no exceptions.
It’s even been shown that indoor dogs are just as likely to get heartworm as those that live outside.
A) Larvae enter dog from infected mosquito.
B) Larvae migrate through tissues, reaching the heart after approx. 4 months.
C) Worms mature in the heart at 6 months, and reproduce. Microfilariae circulate in the bloodstream.
D) Mosquito ingests blood infected with microfilariae.
E) Microfilariae develop into infective larvae within the mosquito.
Note that we have not included the old daily heartworm tablets and syrups on this list. They are no longer thought to be a reliable or safe means of preventing heartworm infection. And remember that intestinal allwormer tablets do not prevent heartworm.
All of the other products are very safe and effective, providing you take the following precautions:
If treatment lapses for less than 6 months, it should be restarted ASAP, but a blood test will be needed 8 - 12 months later as described in the next point.
If you have any further questions about heartworm disease, please give us a call.