Dexchlorpheniramine
Indications
Allergy Symptoms
Adult Dose
Oral
Allergy Symptoms
2 mg PO 4-6 hourly
Child Dose
Oral
Allergy Symptoms
2-6 years: Syrup: 0.5 mg PO 4-6 hourly
6-11 years: (syrup) 1 mg PO 4-6 hourly
>12 years: As adults; (syrup) 2 mg PO 4-6 hourly
Elderly Dose
Dose at lower end of dosage range (2 mg PO q4-6hr) or administer less frequently
Nonanticholinergic antihistamines should be considered first when treating allergic reactions (Beers Criteria)
Avoid use in elderly because of high incidence of anticholinergic effects
Clearance reduced with advanced age, greater risk of confusion, dry mouth, constipation, and other anticholinergic effects and toxicity
May exacerbate existing lower urinary conditions or benign prostatic hyperplasia
Pregnancy-Lactation
B
Pregnancy Category: B
Lactation: excretion in milk unknown/not recommended
Interactions
Contraindicated (0)
Serious (10)
calcium/magnesium/potassium/sodium oxybates
eluxadoline
metoclopramide intranasal
olopatadine intranasal
pitolisant
ropeginterferon alfa 2b
sodium oxybate
sofpironium topical
tranylcypromine
zuranolone
Mechanism of Action
Histamine H1-receptor antagonist in blood vessels, respiratory tract, and gastrointestinal tract