The American Heartworm Society recommends that puppies and kittens be started on a heartworm preventive as early as the product label allows, and no later than 8 weeks of age. Ferrets are started on a preventive when they weigh at least two pounds. The dosage of a heartworm medication is based on body weight, not age.
When should a puppy start heartworm preventative?
Puppies can begin heartworm preventative medication from as young as 6/8 weeks old. If your pup is a little older (age 6 months plus) it is important that she is given a heartworm test before preventative medication is given.
Does my puppy need heartworm medicine?
One of the most common questions heard by our veterinarians during an annual wellness exam is, “Does my pet really need heartworm prevention?” To put it simply: yes! Even if your pet is considered “indoors-only,” all cats and dogs should be on a heartworm prevention medication.
Do all puppies have heartworm?
Is heartworm disease common in puppies? Heartworm disease is rare in puppies because it takes such a long time for the infective larvae to develop into adults.
Do puppies need heartworm test?
All dogs should be tested annually, even those on heartworm prevention medication year round. Puppies under seven months old may be started on heartworm prevention even though it can take six months or more for blood work to test positive. After that, they should be tested in six months and again, six months later.
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