Dyscrasia, is a concept from ancient Greek medicine with the word "dyskrasia", meaning bad mixture.^[1] To the Greeks, it meant an imbalance of the four humors: blood, black bile, yellow bile, and water (phlegm). These humors were believed to exist in the body, and were the direct cause of all disease. This is similar to the Asian concept of Yin and Yang that an imbalance of the two polarities caused ailment. Beginning of Homers Odyssey The Ancient Greek language is the historical stage of the Greek language[1] as it existed during the Archaic (9th–6th centuries BC) and Classical (5th–4th centuries BC) periods in Ancient Greece. ... For the chemical substances known as medicines, see medication. ... For other uses, see Blood (disambiguation). ... Melancholia (Greek μελαγχολια) was described as a distinct disease as early as the fifth and fourth centuries BC in the Hippocratic writings. ... Choleric is a temperament in the ancient medical theory of the four humours. ... This article is about the medical term. ... For other uses, see Asia (disambiguation). ... Japanese name Kanji: Hiragana: Korean name Hangul: Hanja: Vietnamese name Quốc ngữ: Chữ nôm: Hán tá»±: The Taijitu of Zhou Dun-yi In Chinese philosophy, yin and yang (simplified Chinese: ; traditional Chinese: ; pinyin: ) are generalized descriptions of the antitheses or mutual correlations in human perceptions of phenomena...

It is still occasionally used in medical context for an unspecified disorder of the blood. Specifically it is defined in current medicine as a morbid general state resulting from the presence of abnormal material in the blood, usually applied to diseases affecting blood cells or platelets. ^[2]

Antimetabolitic Agents such as Leucovorin, Methotrexate, etc. may cause blood dyscrasias. Spironolactone (Potassium sparing diuretic), when used as a pro-drug to treat Conn syndrome may cause this side effect Conns syndrome is overproduction of the mineralocorticoid hormone aldosterone by the adrenal glands. ...

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