Upendranath Brahmachari
Rai Bahadur Sir Upendranath Brahmachari (19 December 1873 – 6 February 1946) was an Indian scientist and a leading medical practitioner of his time. He synthesised Urea-Stibamine (carbostibamide) in 1922 and determined that it was an effective treatment for Kala-azar (Visceral leishmaniasis).
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