DasBoots

What do you think the chances are of you actually making it into space?

Not sure if you guys have this too, but here in the US, Vicks introduced a product called Zzzquil as a sleep aid. It is simply diphenhydramine (Benadryl) liquid caps, but sold at a >50% markup. For OTC products like these, going for the cheapest generic is usually the best idea IMO. The price markup on the "fancy" brands is simply paying for the marketing and brand name. For prescription drugs, especially ones where the generic was recently released, you get no promises.