Comparative Pharmacology
Head-to-head clinical analysis: DECADRON LA versus FLAC.
Peer-Reviewed Evidence
Head-to-head clinical analysis: DECADRON LA versus FLAC.
DECADRON-LA vs FLAC
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Corticosteroid that binds to glucocorticoid receptors, modulating gene expression to produce anti-inflammatory and immunosuppressive effects; suppresses migration of polymorphonuclear leukocytes, reverses increased capillary permeability, and reduces cytokine production.
FLAC (Fluorouracil) is a pyrimidine analog that inhibits thymidylate synthase, blocking DNA synthesis. It is converted to active metabolites (FdUMP, FUTP) that disrupt RNA function and DNA replication.
Dexamethasone acetate (DECADRON-LA) 8-16 mg intramuscularly every 1-3 weeks; adjust based on response and tolerance.
Adults: 40 mg orally twice daily.
None Documented
None Documented
Terminal elimination half-life is approximately 3-4 hours for dexamethasone, but due to the acetate ester in Decadron-LA, absorption is prolonged, leading to an extended duration of action. The apparent half-life after intramuscular administration is about 3-4 days (72-96 hours) due to slow release from the injection site.
2-4 hours; prolonged in renal impairment (up to 12 hours)
Renal (<5% unchanged), hepatic metabolism with inactive metabolites excreted renally and fecally; urine and bile are minor routes. Exact % not specified for Decadron-LA (dexamethasone acetate), but dexamethasone is predominantly metabolized and metabolites are excreted renally (~80% of dose) and fecally (~20%).
Renal: 70% unchanged; Fecal: 20%; Biliary: 10%
Category C
Category C
Corticosteroid
Corticosteroid