Cortaren Corticosteroid
Generic name: dexamethasone sodium phosphate
Dosage form: kit
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Dexamethasone Sodium Phosphate Injection, USP
Rx only
DESCRIPTION:
Dexamethasone sodium phosphate is a water-soluble inorganic ester of dexamethasone. It occurs as a white or slightly yellow crystalline powder, is odorless or has a slight odor of alcohol, is exceedingly hygroscopic and is freely soluble in water.
Dexamethasone sodium phosphate is an adrenocortical steroid anti-inflammatory drug.
Chemically, dexamethasone sodium phosphate is 9-Fluoro-11ß,17,21-trihydroxy-16α-methylpregna-1, 4-diene-3,20-dione 21-(dihydrogen phosphate) disodium salt and has the following structural formula:
Dexamethasone Sodium Phosphate Injection, USP is a sterile solution of dexamethasone sodium phosphate in water for injection for intravenous (IV), intramuscular (IM), intra-articular, soft-tissue or intralesional use.
Each mL contains dexamethasone sodium phosphate equivalent to dexamethasone phosphate 4 mg or dexamethasone 3.33 mg; benzyl alcohol 10 mg added as preservative; sodium citrate dihydrate 11 mg; sodium sulfite 1 mg as an antioxidant; Water for Injection q.s. Citric acid and/or sodium hydroxide may have been added for pH adjustment (7.0 to 8.5). Air in the container is displaced by nitrogen.
CLINICAL PHARMACOLOGY:
Dexamethasone sodium phosphate has a rapid onset but short duration of action when compared with less soluble preparations. Because of this, it is suitable for the treatment of acute disorders responsive to adrenocortical steroid therapy.
Naturally occurring glucocorticoids (hydrocortisone and cortisone), which also have salt-retaining properties, are used as replacement therapy in adrenocortical deficiency states. Their synthetic analogs, including dexamethasone, are primarily used for their potent anti-inflammatory effects in disorders of many organ systems.
Glucocorticoids cause profound and varied metabolic effects. In addition, they modify the body’s immune responses to diverse stimuli.
At equipotent anti-inflammatory doses, dexamethasone almost completely lacks the sodium-retaining property of hydrocortisone and closely related derivatives of hydrocortisone.
