Generic Symmetrel is an antiviral. It is used to prevent or treat certain influenza (flu) infections (type A). It may be given alone or along with flu shots. Generic Symmetrel will not work for colds, other types of flu or other virus infections. This medicine is also used to treat Parkinson's disease and other movement disorders.
Generic Valtrex is used for treating shingles (herpes zoster), cold sores (fever blisters or herpes labialis), and treating or suppressing genital herpes in patients with normal immune systems. It is also used to suppress genital herpes in patients with HIV infection.