Sadly, no.You will have to get the pet retested. It's 28.25 for a HWT. If you purchase a years supply of Heartgard you get the test free and a $12 rebate sent to your home. You don't have to purchase a 12 MO supply but it's just more convenient. We can't take the risk of the pet being infected with Heartworm while the pet was not on preventative. Hope this helps.
Robbie is right. Sorry Marianne
Sorry not sure.could you call them.
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