Comparative Pharmacology
Head-to-head clinical analysis: CHLORPROPAMIDE versus GLUCOTROL.
Peer-Reviewed Evidence
Head-to-head clinical analysis: CHLORPROPAMIDE versus GLUCOTROL.
CHLORPROPAMIDE vs GLUCOTROL
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Stimulates insulin release from pancreatic beta cells by blocking ATP-sensitive potassium channels, increasing intracellular calcium, and enhancing peripheral insulin sensitivity. Also reduces hepatic glucose production.
Stimulates insulin secretion from pancreatic beta cells by binding to sulfonylurea receptor 1 (SUR1) on ATP-sensitive potassium channels, causing depolarization and calcium influx. Also may increase peripheral insulin sensitivity.
Initial: 250 mg orally once daily. Maintenance: 100-500 mg orally once daily.
Initial dose 5 mg orally once daily, increased by 2.5-5 mg increments weekly based on glycemic response; maximum 20 mg daily as single or divided doses (for doses >15 mg, administer in divided doses).
None Documented
None Documented
Clinical Note
moderateChlorpropamide + Gatifloxacin
"Chlorpropamide may increase the hypoglycemic activities of Gatifloxacin."
Clinical Note
moderateChlorpropamide + Rosoxacin
"Chlorpropamide may increase the hypoglycemic activities of Rosoxacin."
Clinical Note
moderateChlorpropamide + Levofloxacin
"Chlorpropamide may increase the hypoglycemic activities of Levofloxacin."
Clinical Note
moderateChlorpropamide + Trovafloxacin
36 hours (range 25-60 hours). Prolonged in renal impairment due to cumulative effects and hypoglycemia risk.
Terminal elimination half-life: 2-4 hours (mean 3.4 hours) in normal subjects; extended up to 8-12 hours in elderly or hepatic impairment due to reduced clearance.
Renal excretion of unchanged drug (80-90%) and hepatic metabolites (10-20%). Biliary/fecal excretion is minimal (<5%).
Primarily renal: ~80% as metabolites (mainly 4-trans-hydroxyglipizide and 3-cis-hydroxyglipizide) and ~10% unchanged; fecal: ~10%.
Category C
Category C
Sulfonylurea Antidiabetic
Sulfonylurea Antidiabetic
"Chlorpropamide may increase the hypoglycemic activities of Trovafloxacin."