Dextromethorphan and promethazine and Nourianz

• Generic Name: dextromethorphan / promethazine
• Dosage Forms: n.a.
• 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: istradefylline
• Dosage Forms: tablet, film coated
• Other Brand Names: Nourianz

Nourianz (istradefylline) is is an adenosine receptor antagonist. Adenosine receptors are involved with the regulation of motor (muscle) behaviour.

Nourianz is given with levodopa and carbidopa to treat "wearing-off" episodes (muscle stiffness, loss of muscle control) in people with Parkinson's disease.

Nourianz is a prescription medicine and is supplied as a 20mg or 40mg tablet.