Dextroamphetamine Extended-Release Capsules and Viekira

• Generic Name: dextroamphetamine
• Dosage Forms: capsule, extended release
• Other Brand Names: Dexedrine Spansule, ProCentra, Zenzedi, Dexedrine, Dextrostat, Liquadd

Dextroamphetamine is a central nervous system stimulant. It affects chemicals in the brain and nerves that contribute to hyperactivity and impulse control.

Dextroamphetamine is used to treat narcolepsy and attention deficit hyperactivity disorder (ADHD).

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

• Generic Name: dasabuvir / ombitasvir / paritaprevir / ritonavir
• Dosage Forms: n.a.
• Other Brand Names: Viekira XR, Viekira Pak

Viekira is an antiviral medicine containing a combination of dasabuvir, ombitasvir, paritaprevir, and ritonavir. Dasabuvir, ombitasvir, paritaprevir, and ritonavir are antiviral medicines that prevent the hepatitis C virus (HCV) from multiplying in your body.

Viekira is used to treat chronic hepatitis C in adults. It 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. This medicine is not a treatment for HIV or AIDS.