Some Experts Believe Pets Should Start Heartworm Preventatives at Two Months of Age
Veterinary medicine is a constantly evolving profession. A good vet must be willing to adapt the way he or she practices as new discoveries change the field.
Heartworms are blood parasites of dogs and cats. They are spread by mosquitoes, and they can cause heart failure. Veterinary parasitologists, who are the experts on the subject of heartworms, have been sounding alarm bells about the worms for several years. They worry that heartworm disease is a growing threat to pets. And some experts believe that many vets are not treating young animals with heartworm preventatives appropriately.
Most vets recommend starting heartworm preventatives at four to six months of age. But an online discussion forum that occurred through the Veterinary Information Network (VIN) on October 5 challenged this mantra.
Dr. Tom Nelson, moderator of the forum, pointed out that two months of age (or perhaps earlier) is a more appropriate time to begin heartworm prevention. His argument was based on features of the heartworm life cycle and the means by which preventatives protect pets.
I won’t bore you with all of the details. But I am going to change my recommendations for heartworm prevention in young animals.
You have questions. 
heres an interesting fact about heart worms. When I lived in the South Pacific , I took the same medicine (different dosage) that my dog took for heart worm. I took it twice a year to prevent elephantitis
In this article it says near the end,”I wont bore you with the details”. I”d like to be bored with the details. If you don’t include the details then why bother at all?
It is funny that I came across this post. I have been having trouble considering starting my puppy on a href=”http://www.petcarerx.com/pcrx/ProductPages/Dogs/CategoryPages/Heartworm.aspx”>heartworm medication. The reason is because I am afraid this will have a larger negative impact on my puppy than a positive impact. This feeling is based on my experience with antibiotics and the fact that once your body (or bacteria) because immune to the medication, you will either need to up the dose or switch medications. I just feel this will happen to my buddy.
Can you link or add more info that maybe able to help me decide?
Thanks,
Kalman
It is funny that I came across this post. I have been having trouble considering starting my puppy on a heartworm medication. The reason is because I am afraid this will have a larger negative impact on my puppy than a positive impact. This feeling is based on my experience with antibiotics and the fact that once your body (or bacteria) because immune to the medication, you will either need to up the dose or switch medications. I just feel this will happen to my buddy.
Can you link or add more info that maybe able to help me decide?
Thanks,
Kalman