Indication |
Examined for treatment of adrenocortical insufficiency especially
in multiple sclerosis, congenital cerebral palsy, polyarteritis nodosa,
and rheumatoid arthritis. Currently only approved in treating cats and
dogs for the treatment of Addison's disease. |
Pharmacodynamics |
Used to treat adrenocortical insufficiency, desoxycorticosterone
pivalate is a mineralocorticoid hormone and an analogue of
desoxycorticosterone. It primarily acts on the metabolism of sodium,
potassium and water. When the drug is given, there is decreased
excretion of sodium accompanied by increased excretion of potassium; the
concentration of sodium in the blood is thereby increased whereas that
of potassium is decreased. There is a concomitant increase in the volume
of blood and extracellular fluids, with a fall in hematocrit. It
increases the rate of renal tubular absorption of sodium. |
Mechanism of action |
Desoxycorticosterone Pivalate binds to the mineralocorticoid
receptor. Mineralocorticoids are a family of steroids, secreted by the
adrenal cortex, necessary for the regulation of a number of metabolic
processes including electrolyte regulation. Desoxycorticosterone
pivalate exerts its effect through its interaction with the
mineralocorticoid receptor (MR), whereby it reacts with the receptor
proteins to form a steroid-receptor complex. This complex moves into the
nucleus, where it binds to chromatin which results in genetic
transcription of cellular DNA to messenger RNA. The steroid hormones
appear to induce transcription and synthesis of specific proteins, which
produce the physiological effects seen after administration. |
Absorption |
Not Available |
Volume of distribution |
Not Available |
Protein binding |
90% |
Metabolism |
Not Available |
Route of elimination |
Not Available |
Half life |
Not Available |
Clearance |
Not Available |
Toxicity |
Symptoms of overdose include polyuria, polydipsia, increased blood volume, edema, and cardiac enlargement. |
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