Used to Treat Malaria, Also Found in a G&t

Puzzle 9 of The Moon Hard Pack

Question is: Used to Treat Malaria, Also Found in a G&t

and the answer is: QUININE

Word Meaning:

QUININE — (pharmacology) An alkaloid with the chemical formula C₂₀H₂₄N₂O₂, originally derived from cinchona bark (from plants of the genus Cinchona), used to treat malaria and as an ingredient of tonic water, which presents as a bitter colourless powder; also, a drug containing quinine or a chemical compound derived from it.

Definitions from Wiktionary.

Used to treat malaria, also found in a G&T The Moon Answers | CodyCross Solutions