What is Hista-Vent PSE (chlorpheniramine, methscopolamine, and pseudoephedrine)?
Chlorpheniramine is an antihistamine that reduces the natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose. Methscopolamine reduces the secretions of certain organs in the body. Pseudoephedrine is a decongestant that shrinks blood vessels in the nasal passages. Dilated blood vessels can cause nasal congestion (stuffy nose). The combination of chlorpheniramine, methscopolamine, and pseudoephedrine is used to treat symptoms of the common cold or seasonal allergies, including sneezing, runny or stuffy nose, and itchy, watery eyes. Chlorpheniramine, methscopolamine, and pseudoephedrine may also be used for other purposes not listed in this medication guide.
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