Reid Hunt (1870âÂÂ1948), was an American pharmacologist, known for his work on adrenal glands; where he postulated that extracts from which cause rise in blood pressure due to its content of adrenaline. When he removed the adrenaline from the extract and he found that it causes fall in blood pressure, which he concluded was due to a derivative of choline, later on known as acetylcholine.
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During the study of thyroid gland iodine content and its physiological activity he demonstrated the presence of thyroid hormone in the human blood. Studies involving acetonitrile showed that the poisoning is mainly due to the hydrocyanic acid liberated in the organism and its ability to neutralise various sulphur compounds.