Dextromethorphan, diphenhydramine, and phenylephrine and Poly-Hist PD

• Generic Name: dextromethorphan / diphenhydramine / phenylephrine
• Dosage Forms: n.a.
• Other Brand Names: Dytan-DM, Triaminic Day Time Night Time Cold & Cough, Duratuss AC 12, D-Tann DM

Dextromethorphan is a cough suppressant. It affects the signals in the brain that trigger cough reflex.

Diphenhydramine is an antihistamine that reduces the effects of natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose.

Phenylephrine is a decongestant that shrinks blood vessels in the nasal passages. Dilated blood vessels can cause nasal congestion (stuffy nose).

Dextromethorphan, diphenhydramine, and phenylephrine is a combination medicine used to treat cough, runny or stuffy nose, sneezing, itching, and watery eyes caused by allergies, the common cold, or the flu.

dextromethorphan, diphenhydramine, and phenylephrine will not treat a cough that is caused by smoking, asthma, or emphysema.

Dextromethorphan, diphenhydramine, and phenylephrine may also be used for purposes not listed in this medication guide.

• Generic Name: chlophedianol / thonzylamine
• Dosage Forms: n.a.
• Other Brand Names: Poly-Hist PD

• It is used to ease allergy signs.
• It is used to relieve coughing.