Valaciclovir

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Valaciclovir

Valaciclovir (pronounced: val-uh-SY-klo-veer) is an antiviral drug used in the management and treatment of infections caused by the herpes virus.

Etymology

The term "Valaciclovir" is derived from its chemical structure. It is a prodrug of Aciclovir, meaning it is converted into Aciclovir in the body. The prefix "Val-" is derived from the chemical name "L-valine", an amino acid used in the synthesis of the drug.

Usage

Valaciclovir is primarily used to treat herpes simplex infections, including genital herpes, and herpes zoster (shingles). It can also be used to prevent outbreaks of these infections in individuals with frequent episodes.

Mechanism of Action

Valaciclovir works by inhibiting the replication of the herpes virus. It is converted into Aciclovir in the body, which is then incorporated into the viral DNA, preventing it from replicating.

Side Effects

Common side effects of Valaciclovir include headache, nausea, and abdominal pain. In rare cases, it can cause serious side effects such as kidney problems and thrombotic thrombocytopenic purpura (TTP).

Related Terms

  • Aciclovir: The active form of Valaciclovir in the body.
  • Herpes simplex: A virus that causes infections such as cold sores and genital herpes.
  • Herpes zoster: Also known as shingles, it is an infection caused by the varicella-zoster virus.
  • Antiviral drug: A type of medication used to treat viral infections.

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