What are amphetamines? Speed, sulph, sulphate, uppers, wake ups, billy whizz, whizz, whites, base…Methylphenidate, Ritalin. Dexamphetamine, Dexedrine. Methamphetamine, crystal meth, meth, yaba, crank, glass, Tina, Christine, ice. Amphetamines are synthetic stimulants. Stimulants are drugs that speed up the body’s processes…