alkaloid
phytotoxin
plant toxin
pressor
vasoconstrictive
vasoconstrictor
addiction
amphetamine
arsenic
aspirin
atropine
bupropion
caffeine
cannabis
chloroform
curare
cyanide
ephedrine
estrogen
heroin
lympho
morphia
muscarinic
narcotic
opiate
opium
quinine
strychnine
testosterone
yasmin