is a specific kind of: organic compound.

is a broader term that covers: atropine | hyoscyamine | pilocarpine | hyoscine, scopolamine | physostigmine | cinchonine | ephedrine | ergonovine, Ergotrate Maleate | ergotamine | pseudoephedrine | nicotine | strychnine | brucine | betaine | caffein, caffeine | rauwolfia | curare, tubocurarine ... show more.

derivation: alkaloidal.