Comparative Pharmacology
Head-to-head clinical analysis: CORTROSYN versus COSYNTROPIN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: CORTROSYN versus COSYNTROPIN.
CORTROSYN vs COSYNTROPIN
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Corticotropin (ACTH) stimulates the adrenal cortex to release cortisol, corticosterone, and aldosterone; used diagnostically to assess adrenal function.
Synthetic adrenocorticotropic hormone (ACTH) analog that stimulates adrenal cortex to secrete cortisol, corticosterone, and androgens.
For diagnostic testing of adrenal function: 250 mcg intramuscularly or intravenously as a single dose. For infants and children: 125 mcg intramuscularly or intravenously as a single dose.
250 mcg to 2500 mcg intramuscularly or intravenously, with 250 mcg being the most commonly used dose for cosyntropin stimulation test; frequency as needed per test protocol.
None Documented
None Documented
Terminal half-life approximately 1.5 hours (dose-dependent: 1.1-2.2 h). Rapid clearance limits duration of action.
Terminal elimination half-life is approximately 15 minutes; rapid clearance requires continuous infusion or frequent dosing for sustained effect.
Primarily renal (90% as metabolites, 10% unchanged); negligible biliary/fecal.
Primarily renal; >90% of dose excreted unchanged in urine; negligible biliary/fecal elimination.
Category C
Category C
Corticotropin
Corticotropin