Dextromethorphan Hydrobromide and Quinidine Sulfate and Prezcobix

• Generic Name: dextromethorphan / quinidine
• Dosage Forms: n.a.
• Other Brand Names: Nuedexta

The fixed combination of dextromethorphan hydrobromide and quinidine sulfate (dextromethorphan/quinidine; Nuedexta) is used in the treatment of PBA.

PBA occurs secondary to various otherwise unrelated neurologic conditions (e.g., amyotrophic lateral sclerosis [ALS], multiple sclerosis [MS], dementia of the Alzheimer's type [Alzheimer's disease] or other dementia, parkinsonian syndrome, stroke, traumatic brain injury) and is characterized by involuntary, sudden, uncontrollable, and frequent episodes of laughing and/or crying. PBA episodes typically occur out of proportion or incongruent to the underlying emotional state.

Studies supporting efficacy in PBA were conducted in patients with underlying ALS or MS.

Safety and efficacy in the treatment of other common types of emotional lability (e.g., those occurring in patients with Alzheimer's disease and other dementias) not established.

• Generic Name: cobicistat / darunavir
• Dosage Forms: tablet, film coated
• Other Brand Names: Prezcobix

Prezcobix contains a combination of darunavir and cobicistat. Darunavir is an antiviral medicine that prevents human immunodeficiency virus (HIV) from multiplying in your body. Cobicistat reduces the action of enzymes in your liver that break down certain antiviral medicines. This allows the antiviral medicines to be used more safely and effectively at lower doses.

Prezcobix is a combination medicine given together with other antiviral medicines to treat human immunodeficiency virus (HIV) in adults, the virus that can cause acquired immunodeficiency syndrome (AIDS).

Prezcobix is not a cure for HIV or AIDS.