Comparative Pharmacology
Head-to-head clinical analysis: CHLORPHENIRAMINE MALEATE versus DECABID.
Peer-Reviewed Evidence
Head-to-head clinical analysis: CHLORPHENIRAMINE MALEATE versus DECABID.
CHLORPHENIRAMINE MALEATE vs DECABID
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
H1 receptor antagonist; competitively blocks histamine at H1 receptors, preventing histamine-mediated symptoms such as vasodilation, increased capillary permeability, and smooth muscle contraction.
Decabid is a combination of chlorpheniramine (antihistamine) and pseudoephedrine (decongestant). Chlorpheniramine competitively antagonizes histamine at H1 receptors, reducing allergic symptoms. Pseudoephedrine acts as a sympathomimetic agent, stimulating alpha-adrenergic receptors to cause vasoconstriction, reducing nasal congestion.
4 mg orally every 4-6 hours, not to exceed 24 mg per day; or 10-20 mg intramuscularly or intravenously as a single dose, not to exceed 40 mg per day.
1 capsule orally every 12 hours; each capsule contains 10 mg phenylephrine hydrochloride and 75 mg carbinoxamine maleate.
None Documented
None Documented
Clinical Note
moderateDexchlorpheniramine maleate + Haloperidol
"The metabolism of Haloperidol can be decreased when combined with Dexchlorpheniramine maleate."
Clinical Note
moderateDexchlorpheniramine maleate + Sulfisoxazole
"The metabolism of Sulfisoxazole can be decreased when combined with Dexchlorpheniramine maleate."
Clinical Note
moderateDexchlorpheniramine maleate + Erythromycin
"The metabolism of Erythromycin can be decreased when combined with Dexchlorpheniramine maleate."
Clinical Note
moderateTerminal elimination half-life: 12-15 hours (prolonged in hepatic impairment).
12 hours (terminal); prolonged to 24 hours in renal impairment (CrCl <30 mL/min)
Renal: ~50% as metabolites; Fecal: negligible; Biliary: minor.
Renal (50% as unchanged drug), fecal (40% as metabolites), biliary (10% as glucuronide conjugates)
Category C
Category C
Antihistamine
Antihistamine/Decongestant Combination
Dexchlorpheniramine maleate + Cyclosporine
"The metabolism of Cyclosporine can be decreased when combined with Dexchlorpheniramine maleate."