An alkaloid derived from the bark of the cinchona tree. It is used as an antimalarial drug, and is the active ingredient in extracts of the cinchona that have been used for that purpose since before 1633. Quinine is also a mild antipyretic and analgesic and has been used in common cold preparations for that purpose. It was used commonly and as a bitter and flavoring agent, and is still useful for the treatment of babesiosis. Quinine is also useful in some muscular disorders, especially nocturnal leg cramps and myotonia congenita, because of its direct effects on muscle membrane and sodium channels. The mechanisms of its antimalarial effects are not well understood.

Descriptor ID	D011803
MeSH Number(s)	D03.132.206.719 D03.605.687.762 D03.633.100.810.762
Concept/Terms	Quinine Quinine Quinimax Quinimax Quinine Bisulfate Quinine Bisulfate Bisulfate, Quinine Quinine Hydrochloride Quinine Hydrochloride Hydrochloride, Quinine Myoquin Myoquin Quinamm Quinamm Quinbisan Quinbisan Legatrim Legatrim Quinine Lafran Quinine Lafran Quinine Sulfate Quinine Sulfate Sulfate, Quinine Quinine Sulphate Sulphate, Quinine Quinine-Odan Quinine-Odan Quinoctal Quinoctal Surquina Surquina Biquinate Biquinate Strema Strema Quindan Quindan Quinbisul Quinbisul Quinson Quinsul

Below are MeSH descriptors whose meaning is more general than "Quinine".

Below are MeSH descriptors whose meaning is related to "Quinine".

Below are MeSH descriptors whose meaning is more specific than "Quinine".