SOLTRIOL
\sˈə͡ʊltɹɪˌɒl], \sˈəʊltɹɪˌɒl], \s_ˈəʊ_l_t_ɹ_ɪ__ˌɒ_l]\
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The physiologically active form of vitamin D. It is formed primarily in the kidney by enzymatic hydroxylation of 25-hydroxycholecalciferol (CALCIFEDIOL). Its production is stimulated by low blood calcium levels and parathyroid hormone. Calcitriol increases intestinal absorption of calcium and phosphorus, and in concert with parathyroid hormone increases bone resorption.
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Word of the day
tinctura quininae ammoniata
- A preparation made by dissolving quinin sulphate in alcohol [Br. Ph.].