you can buy a product called "bronkaid" at walgreens, its for asthma and it contains 25mg ephedrine. for caffine just get no doz, or just the generic caffeine pill also at walgreens.

maltodex? not sure, dont use it. i use regular dextrose and i get it from www.supplementdirect.com 11lb for 10$ there shipping time really sucks though so be patient.