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When should my 10-week puppy start heartworm & Bordetella shots?

Updated On September 23rd, 2025

Pet's info: Dog | Shih Tzu | Male | 2 months and 10 days old | 2.15 lbs

Hello, I have a Shih Tzu who is 10 weeks old and I want to know at what age is good for him to start taking the medicine for heart worm disease and also it says on his shots record that he was given the bordotella before I got him, which was when he was 8 weeks old, is it accurate that they gave him that medication at that age?

1 Answer

Most Helpful Answer

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Answered By Andrea M. Brodie, DVM

Veterinarian

Published on April 10th, 2018

You can start your puppy on heartworm medication any time from now own. If you visit your vet he may have a starter pack for heartworm medication for free in a puppy pack. Not every vet has it, but it does not hurt to ask. Bodetella vaccination is ok at that age, however should you intend to board your puppy anytime with a boarding facility, I would repeat the vaccination, as it may not have been effective given at that age.

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