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Author: Admin | 2025-04-28
Medically reviewed by Jessica Swirble, PharmDLast updated on 3/28/2024Quick factsBrand Name: ValtrexGeneric Name: ValacyclovirUses: Treatment of herpes infections, including genital herpes, cold sores, and shinglesDrug Class: AntiviralAvailability: Prescription onlyGeneric Status: YesControlled Substance: NoWhat is valacyclovir?Valacyclovir is an antiviral medication primarily used to treat herpes infections, including genital herpes (herpes simplex), cold sores (herpes labialis), and shingles (herpes zoster). It is also used to treat cold sores and chickenpox in children.Note that valacyclovir will not cure shingles or genital herpes. It is used to reduce pain and to help sores heal faster.What conditions does valacyclovir treat?Herpes infections: Valacyclovir is effective in treating herpes simplex virus (HSV) infections, reducing the severity and duration of outbreaks. It can also help alleviate symptoms like pain, itching, and burning associated with herpes.Shingles (herpes zoster): Valacyclovir can speed up the healing of shingles lesions and reduce the risk of complications such as postherpetic neuralgia.Chickenpox: Valacyclovir is used to treat chickenpox in children who are at least 2 years old.Cold sores: Valacyclovir is also indicated to treat cold sores in teenagers who are at least 12 years old.How does valacyclovir work?Valacyclovir is an antiviral drug that becomes acyclovir in the body. Acyclovir is an active antiviral drug that fights against herpes viruses. It works by keeping a virus’ DNA from multiplying. By blocking this process, valacyclovir helps control and suppress herpes outbreaks.Note that valacyclovir is most effective when started at the first sign of an outbreak or as soon as possible after the onset of symptoms.How do I take valacyclovir?Valacyclovir is usually taken orally, with or without food, as directed by your healthcare provider. The dosage and duration of treatment depend on the type and severity of the herpes infection. Follow your healthcare provider's instructions carefully.For recurrent herpes outbreaks, valacyclovir may be prescribed as a short-term or long-term treatment to prevent future episodes.How long until I feel better?Valacyclovir can start relieving symptoms and reducing the duration of herpes outbreaks within a few days of starting treatment. However, complete healing may take longer, especially for shingles. It's important to continue taking valacyclovir as prescribed, even if symptoms improve,
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