Comparative Pharmacology
Head-to-head clinical analysis: AMMONIUM CHLORIDE versus MUCINEX DM.
Peer-Reviewed Evidence
Head-to-head clinical analysis: AMMONIUM CHLORIDE versus MUCINEX DM.
AMMONIUM CHLORIDE vs MUCINEX DM
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Ammonium chloride is an acidifying agent. It dissociates to ammonium and chloride ions. The ammonium ion is converted to urea in the liver, releasing hydrogen ions, which lower blood and urinary pH. It also increases chloride concentration, promoting excretion of bicarbonate and other bases.
Guaifenesin increases respiratory tract fluid secretion to reduce mucus viscosity; dextromethorphan acts on sigma-1 receptors and NMDA receptor antagonism to suppress cough reflex.
For metabolic alkalosis: 1-2 g orally 3-4 times daily; or 1 g (as 2 mmol/kg) intravenously over 4-6 hours, repeat as needed based on blood gas analysis.
One tablet (guaifenesin 600 mg / dextromethorphan HBr 30 mg) orally every 12 hours, not to exceed 2 tablets in 24 hours.
None Documented
None Documented
Clinical Note
moderateAmmonium chloride + Mecamylamine
"The serum concentration of Mecamylamine can be decreased when it is combined with Ammonium chloride."
Clinical Note
moderateAmmonium chloride + Benzphetamine
"The serum concentration of Benzphetamine can be decreased when it is combined with Ammonium chloride."
Clinical Note
moderateAmmonium chloride + Amphetamine
"The serum concentration of Amphetamine can be decreased when it is combined with Ammonium chloride."
Clinical Note
moderateTerminal elimination half-life is approximately 8-12 hours in normal renal function; prolonged in renal impairment (up to 30 hours) due to reliance on renal acid excretion.
Guaifenesin: 1-3 hours. Dextromethorphan: 3-30 hours depending on CYP2D6 phenotype; extensive metabolizers 3-8 hours, poor metabolizers 15-30 hours.
Renal: >99% as ammonium ion (NH4+) and chloride (Cl-), with acid excretion via conversion of NH4+ to urea in liver; minimal biliary/fecal.
Guaifenesin: renal (primarily as inactive metabolites, <1% unchanged). Dextromethorphan: renal (as unchanged drug and metabolites, including dextrorphan). Approximately 80% eliminated in urine as metabolites.
Category C
Category C
Expectorant/Systemic Acidifier
Expectorant/Antitussive Combination
Ammonium chloride + Mephentermine
"The serum concentration of Mephentermine can be decreased when it is combined with Ammonium chloride."