The only tick Stronghold claims to work against is Dermacentor variabilis, the American Dog Tick. The label warns that in heavy tick infestations, complete tick efficacy may not be achieved after the first dose,so an additional dose may be given two weeks later, with monthly dosing continuing after that. That's why we recommend a stronger product like Advantix or Bravecto for extensive tick prevention.

As well so many other parasites, Stronghold is a heartworm preventative but it doesn't treat, If your dog already has heartworm. Therefore it would be advisable to test your dog if he/she has heartworm before start to use it.

We can't change the product on the automatic order, however you can cancel your Revolution from the website (my account) and re-order Stronghold.

You can place your order with a Visa or MasterCard online or by phone.

You can use relevant Stronghold and Revolution products on puppies 8 weeks old upwards.