Comparative Pharmacology
Head-to-head clinical analysis: ALPRAZOLAM versus CHLORDIAZACHEL.
Peer-Reviewed Evidence
Head-to-head clinical analysis: ALPRAZOLAM versus CHLORDIAZACHEL.
ALPRAZOLAM vs CHLORDIAZACHEL
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Positive allosteric modulator of GABA-A receptors; enhances GABA inhibitory neurotransmission by binding to benzodiazepine site on GABA-A receptor, increasing chloride ion conductance.
Chlordiazepoxide is a benzodiazepine that enhances the effect of the neurotransmitter gamma-aminobutyric acid (GABA) at the GABA-A receptor, resulting in increased chloride ion influx, hyperpolarization of neurons, and decreased neuronal excitability. This produces anxiolytic, sedative, hypnotic, muscle relaxant, and anticonvulsant effects.
0.25-0.5 mg orally 3 times daily; maximum 4 mg/day in divided doses.
Initial: 5-10 mg orally 3-4 times daily; for severe anxiety, up to 25 mg 4 times daily. IM: 50-100 mg initially, then 25-50 mg 3-4 times daily if needed.
None Documented
None Documented
Clinical Note
moderateAlprazolam + Fluticasone propionate
"The risk or severity of adverse effects can be increased when Alprazolam is combined with Fluticasone propionate."
Clinical Note
moderateAlprazolam + Haloperidol
"The risk or severity of adverse effects can be increased when Alprazolam is combined with Haloperidol."
Clinical Note
moderateAlprazolam + Sulfisoxazole
"The metabolism of Sulfisoxazole can be decreased when combined with Alprazolam."
Clinical Note
moderateAlprazolam + Erythromycin
12-15 hours (mean ~13 hours); prolonged in elderly (up to 19 hours) and hepatic impairment (up to 20-30 hours); clinical context: allows once- to twice-daily dosing, but risk of accumulation with high doses or in vulnerable populations
Parent: 5-30 hours (mean 15 hours); active metabolite desmethylchlordiazepoxide: 10-20 hours; further metabolite demoxepam: 24-96 hours; clinical context: causes drug accumulation with chronic dosing, especially in elderly or hepatic impairment.
Renal (approximately 80% as metabolites, <20% unchanged); fecal (minor, ~7%)
Renal: 50-70% as metabolites (mainly oxazepam and desmethylchlordiazepoxide); biliary/fecal: 10-20% as glucuronide conjugates; 1-2% excreted unchanged.
Category D/X
Category C
Benzodiazepine
Benzodiazepine
"The serum concentration of Erythromycin can be increased when it is combined with Alprazolam."