No, that's not correct. You cannot get D3 by prescription. You can only get it over the counter.
It may not say dry on the bottle, but if it's a tablet or capsule with powder inside, it's probably the right stuff. If it's a soft gel with oily stuff instead, that's the wrong stuff.
I order mine from vitalady.com because I take 50,000 IU and you can't get that big of a dose in the store. If you want a small dose, though, you can get it at Walmart.