Dextromethorphan and Promethazine Syrup and Nighttime Cough

• Generic Name: dextromethorphan / promethazine
• Dosage Forms: syrup
• Other Brand Names: Promethazine with Dextromethorphan, Promethazine with DM, Phenergan with Dextromethorphan, Promethazine DM

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

Promethazine is an antihistamine. It blocks the effects of the naturally occurring chemical histamine in your body.

The combination of dextromethorphan and promethazine used to treat cough, itching, runny nose, sneezing, and itchy or watery eyes caused by colds or allergies.

Dextromethorphan will not treat a cough that is caused by smoking, asthma, or emphysema.

Dextromethorphan and promethazine may also be used for purposes other than those listed in this medication guide.

• Generic Name: dextromethorphan / doxylamine
• Dosage Forms: n.a.
• Other Brand Names: Nighttime Cough, NyQuil Cough, Robitussin Maximum Strength Nighttime Cough DM, Robitussin Nighttime Cough DM, Safetussin PM, Robitussin Maximum Strength Nighttime Cough

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