Dextromethorphan, diphenhydramine, and phenylephrine and Viekira Pak

• 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: dasabuvir / ombitasvir / paritaprevir / ritonavir
• Dosage Forms: tablets
• Other Brand Names: Viekira Pak, Viekira XR

Viekira Pak (Viekira) is a combination antiviral medicine used to treat chronic hepatitis C virus (HCV) in adults. Viekira is sometimes given in combination with another antiviral medicine called ribavirin.

Viekira treats specific genotypes of hepatitis C, and only in certain people. Use only the medications prescribed for you. Do not share your medicine with other people.

Viekira is sometimes used in people who also have HIV. Viekira Pak is not a treatment for HIV or AIDS.

Viekira may also be used for purposes not listed in this medication guide.