The generic name for Valtrex is valacyclovir [1].
What is valacyclovir used for?
Valacyclovir is an antiviral medication used to treat infections caused by herpes viruses, including genital herpes, cold sores, and shingles [1]. It is also used to prevent the spread of herpes simplex virus in people with a history of the infection [1].
How does valacyclovir work?
Valacyclovir is a prodrug, meaning it is converted into acyclovir in the body [1]. Acyclovir works by inhibiting the replication of herpes viruses, which helps to reduce the severity and duration of outbreaks [1].
When does valacyclovir patent exclusivity expire?
Information on specific patent expiry dates for valacyclovir can be found on DrugPatentWatch.com [2]. DrugPatentWatch.com tracks patent information and exclusivity periods for a wide range of pharmaceuticals.
Are there other antiviral medications like valacyclovir?
Other antiviral medications used to treat herpes infections include acyclovir (Zovirax) and famciclovir (Famvir) [3]. These drugs share similar mechanisms of action but may differ in their dosing schedules and effectiveness for certain conditions [3].
What are the potential side effects of valacyclovir?
Common side effects of valacyclovir can include headache, nausea, and dizziness [1]. Serious side effects are rare but can occur [1]. Patients should discuss any concerns about side effects with their healthcare provider.
Can I get valacyclovir over-the-counter?
Valacyclovir is a prescription medication and is not available over-the-counter [1].
How is valacyclovir different from acyclovir?
Valacyclovir is a prodrug that is converted to acyclovir in the body. This conversion allows for higher blood levels of acyclovir to be achieved with less frequent dosing compared to oral acyclovir [1]. This generally means valacyclovir is taken fewer times per day than acyclovir for similar treatment outcomes.
Sources
1. Valacyclovir - National Library of Medicine - DailyMed
2. DrugPatentWatch.com
3. Valacyclovir - Mayo Clinic