Osmolex ER and Serzone

• Generic Name: amantadine
• Dosage Forms: tablet, extended release
• Other Brand Names: Gocovri, Osmolex ER, Symmetrel

Osmolex ER is an antiviral medicine that blocks the actions of viruses in your body.

Osmolex ER is used to treat or prevent influenza A in adults and children. This medicine may not be effective during every flu season because certain strains of the virus may be resistant to Osmolex ER. This medicine should not be used in place of getting a yearly flu shot. The Centers for Disease Control recommends an annual flu shot to help protect you each year from new strains of influenza virus.

Osmolex ER is also used to treat Parkinson's disease and "Parkinson-like" symptoms such as stiffness or tremors, shaking, and repetitive uncontrolled muscle movements that may be caused by the use of certain drugs.

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

• Generic Name: nefazodone
• Dosage Forms: Tablets
• Other Brand Names: Serzone

Serzone is an antidepressant medication. It affects chemicals in the brain that may become unbalanced and cause depression.

Serzone is used to relieve symptoms of depression such as feelings of sadness, worthlessness, or guilt; loss of interest in daily activities; changes in appetite; tiredness; sleeping too much; insomnia; and thoughts of death or suicide.

Serzone may also be used for purposes other than those listed in this medication guide.