大寵愛/寵愛能治療狗狗的疥癬，但貓的情況並非如此。所以貓用的大寵愛/寵愛不治療疥癬。

Stronghold prevent heartworms but it doesn't treat it. So if you have suspicion that your cat has heartworm, it would be good idea to get your cat tested. If she/he has heartworm you would need a different medicine to treat it. This product wouldn't have any extra side effect if they have heartworms, but it won't treat it either.

Yes, you can use visa on our checkout. We don't use Worldpay.

Yes it is exactly the same products with the same ingredients and formula. The manufacturer sells this product in different name in different countries.

不，你不需要處方。