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Chlorpheniramine, Pseudoephedrine, and Codeine
Pronunciation
U.S. Brand Names
Generic Available
Pharmacological Index
Use
Restrictions
Pregnancy Risk Factor
Adverse Reactions
Usual Dosage
Dental Health: Local Anesthetic/Vasoconstrictor Precautions
Dental Health: Effects on Dental Treatment
Dosage Forms

Pronunciation
(klor fen IR a meen, soo doe e FED rin, & KOE deen)

U.S. Brand Names
Codehist® DH; Decohistine® DH; Dihistine® DH; Ryna-C® Liquid

Generic Available

Yes


Pharmacological Index

Antihistamine/Decongestant/Antitussive


Use

Temporary relief of cough associated with minor throat or bronchial irritation or nasal congestion due to common cold, allergic rhinitis, or sinusitis


Restrictions

C-V


Pregnancy Risk Factor

C


Adverse Reactions

1% to 10%:

Central nervous system: Sedation, dizziness, drowsiness, increased intracranial pressure

Gastrointestinal: Constipation, biliary tract spasm

Genitourinary: Urinary tract spasm

Miscellaneous: Physical or psychological dependence with continued use


Usual Dosage

Oral:

25-50 lb: 1.25-2.50 mL every 4-6 hours, up to 4 doses in 24-hour period

50-90 lb: 2.5-5 mL every 4-6 hours, up to 4 doses in 24-hour period

Adults: 10 mL every 4-6 hours, up to 4 doses in 24-hour period


Dental Health: Local Anesthetic/Vasoconstrictor Precautions

Use with caution since pseudoephedrine is a sympathomimetic amine which could interact with epinephrine to cause a pressor response


Dental Health: Effects on Dental Treatment

Chlorpheniramine: Prolonged use will cause significant xerostomia

Codeine: <1%: Dry mouth

Pseudoephedrine: Up to 10% of patients could experience tachycardia, palpitations, and dry mouth; use vasoconstrictor with caution


Dosage Forms

Liquid: Chlorpheniramine maleate 2 mg, pseudoephedrine hydrochloride 30 mg, and codeine phosphate 10 mg (120 mL, 480 mL)


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