Dihydral

Dihydral Uses, Dosage, Side Effects, Food Interaction and all others data.

A vitamin D that can be regarded as a reduction product of vitamin D2.

Dihydral is hydroxylated in the liver to 25-hydroxydihydrotachysterol, which is the major circulating active form of the drug. It does not undergo further hydroxylation by the kidney and therefore is the analogue of 1, 25-dihydroxyvitamin D. Dihydral is effective in the elevation of serum calcium by stimulating intestinal calcium absorption and mobilizing bone calcium in the absence of parathyroid hormone and of functioning renal tissue. Dihydral also increases renal phosphate excretion.

Trade Name Dihydral
Availability Discontinued
Generic Dihydrotachysterol
Dihydrotachysterol Other Names Anti-tetany substance 10, Dihidrotaquisterol, Dihydrotachysterol, Dihydrotachysterolum
Related Drugs Prolia, hydrochlorothiazide, alendronate, calcitriol, calcitonin, Fosamax, ergocalciferol, calcium carbonate, Caltrate
Type
Formula C28H46O
Weight Average: 398.6642
Monoisotopic: 398.354866094
Protein binding

>99%

Groups Approved
Therapeutic Class
Manufacturer
Available Country
Last Updated: September 19, 2023 at 7:00 am
Dihydral
Dihydral

Uses

Dihydral is a synthetic analog of vitamin D that does not require renal activation like vitamin D2 or Vitamin D3.

Used for the prevention and treatment of rickets or osteomalacia, and to manage hypocalcemia associated with hypoparathyroidism or pseudohypoparathyroidism. Also used for the treatment of vitamin D dependent rickets, rickets or osteomalacia secondary to long-term high dose anticonvulsant therapy, early renal osteodystrophy, osteoporosis (in conjunction with calcium), and hypophosphatemia associated with Fanconi syndrome (with treatment of acidosis).

Dihydral is also used to associated treatment for these conditions: Hypoparathyroidism, Pseudohypoparathyroidism

How Dihydral works

Once hydroxylated to 25-hydroxydihydrotachysterol, the modified drug binds to the vitamin D receptor. The bound form of the vitamin D receptor serves as a transcriptional regulator of bone matrix proteins, inducing the expression of osteocalcin and suppressing synthesis of type I collagen. Vitamin D (when bound to the vitamin D receptor)stimulates the expression of a number of proteins involved in transporting calcium from the lumen of the intestine, across the epithelial cells and into blood. This stimulates intestinal calcium absorption and increases renal phosphate excretion. These are functions that are normally carried out by the parathyroid hormone.

Toxicity

Toxicity associated with dihydrotachysterol is similar to that seen with large doses of vitamin D.

Food Interaction

No interactions found.

Innovators Monograph

You find simplified version here Dihydral

*** Taking medicines without doctor's advice can cause long-term problems.
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