HEARTGARD Chewables should be given at monthly intervals during the period of the year when mosquitoes (vectors), potentially carrying infective heartworm larvae, are active. The initial dose must be given within a month (30 days) after the dog's first exposure to mosquitoes.
Do dogs need to take heartworm pills every month?
If at the initial test, your dog is found to have heartworms, treatment will be needed before prevention can begin. However, if your dog is in the clear, he can be started on monthly medication to protect him from the disease.
How often do dogs need heartworm medication?
Because heartworms must be eliminated before they reach this adult stage, it is extremely important that heartworm preventives be administered strictly on schedule (monthly for oral and topical products and every 6 months or 12 months for the injectable).
Do I need to give my dog Heartgard year-round?
Use Heartworm Prevention Medication Year-Round That's one reason veterinarians often recommend that pets receive heartworm prevention medication all year long.
How long should I wait between doses of Heartgard?
When replacing another heartworm preventive product in a heartworm disease preven- tive program, the first dose of HEARTGARD Plus must be given within a month (30 days) of the last dose of the former medication. If the interval between doses exceeds a month (30 days), the efficacy of ivermectin can be reduced.
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