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“When 24,25-dihydroxyvitamin D3 was given with either calcitriol or dihydrotachysterol , serum calcium levels were significantly lower than during treatment with calcitriol or dihydrotachysterol alone.”
The American journal of medicine • 1983 | View Paper
“Hypocalcemic hypercalciuria during vitamin D and dihydrotachysterol therapy is reported in 10 patients with postoperative and idiopathic hypoparathyroidism.”
The Journal of clinical endocrinology and metabolism • 1958 | View Paper
“In experiments on rats it was found that dihydrotachysterol differs markedly from vitamin D in two respects: (1) the dose required to cure rickets is higher, and (2) the therapeutic range is narrower.”
Biochemical and biophysical research communications • 1976 | View Paper
“CONCLUSIONS: Treatment with dihydrotachysterol and other long-acting Vitamin D preparations has to be monitored closely because of the risk of severe hypercalcemia, which may be difficult to treat.”