Information about Doxylamine
Doxylamine is a first generation antihistamine that is used for symptoms of allergic rhinitis and the common cold and as a short acting sedative.
Liver safety of Doxylamine
Doxylamine has not been linked to instances of clinically apparent acute liver injury.
Mechanism of action of Doxylamine
Doxylamine (dox il' a meen) is a first generation antihistamine that is used to treat the symptoms of allergic rhinitis and the common cold, including sneezing, cough, runny note, watery eyes and itching. Because of its sedating side effects, it is also used as a mild sleeping aid and sedative. Doxylamine belongs to the ethanolamine class of antihistamines (with clemastine and dimenhydrinate) and was approved for use in the United States in 1948. It is still widely used today, largely in combination with other agents such as dextromethorphan, pseudoephedrine, aspirin and acetaminophen in over-the-counter products for relief of symptoms of the common cold and allergic rhinitis.
Brand name for Doxylamine
Dosage and administration for Doxylamine
The recommended adult oral dose is 25 to 50 mg. Common side effects include sedation, impairment of motor function, confusion, dizziness, blurred vision, dry mouth and throat, palpitations, tachycardia, abdominal distress, constipation and headache. Antihistamines can worsen urinary retention and glaucoma.
First Generation Antihistamines
Second Generation Antihistamines