I just used a Visa gift card and ordered it from LoudWolf. You can use a Visa gift card for LoudWolf but not Amazon. Should be able to get a Visa gift card at a grocery store, supermarket, or mall.
If you're worried about antiemetics then should probably get DMSO too just in case. I couldn't find anywhere I could order it with a Visa gift card, but it has enough medical uses that you can make up a reason to ask someone else to order it for you.