Is it safe to switch to Valuheart from other brands of heartworm prevention?
Yes. It is completely safe to switch from any form of heartworm prevention (daily, monthly or yearly) to Valuheart. With daily or monthly medications, give the first dose of Valuheart within one month of the last dose of the former medication. With yearly medications, give Valuheart within one month of when your dog is due for their next dose. As long as you continue to use Valuheart as directed, your dog will be protected from deadly heartworm disease.