麻黄碱

ephedrine

variant of 麻[ma2] / hemp

surname Ma

generic name for hemp, flax etc / hemp or flax fiber for textile materials / sesame / CL:縷|缕[lü3] / (of materials) rough or coarse / pocked / pitted / to have pins and needles or tingling / to feel numb

ephedra (genus Ephedra)

yellow / pornographic / to fall through

variant of 鹼|碱[jian3]

base / alkali / soda (chemistry)

methamphetamine

methamphetamine