Euquinine, also known as quinacrine or mepacrine, is a medication used to treat malaria and certain autoimmune diseases. Its spelling can be explained using IPA phonetic transcription as /juːkwɪniːn/. The "eu" at the beginning of the word represents the Greek prefix meaning "good" or "well", while the "quinine" portion refers to the medication's chemical structure. The spelling may be confusing due to the unusual combination of letters, but it is important to remember the correct spelling when referring to this medication.
Euchinin, quinine ethylcarbonate, C23H23N2O4, occurring in white, acicular, nearly tasteless crystals; employed as a substitute for quinine or its salts in doses of gr 10-20 (0.6-1.3).
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.