Valaciclovir

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Warning

• 유해·위험 문구

  H302：삼키면 유해함

• 예방조치문구

  P264：취급 후에는 손을 철저히 씻으시오.

  P264：취급 후에는 손을 철저히 씻으시오.

  P270：이 제품을 사용할 때에는 먹거나, 마시거나 흡연하지 마시오.

  P301+P312：삼켜서 불편함을 느끼면 의료기관(의사)의 진찰을 받으시오.

  P330：입을 씻어내시오.

  P501：...에 내용물 / 용기를 폐기 하시오.

Valaciclovir 화학적 특성, 용도, 생산

• 화학적 성질

  White Solid

• 용도

  The L-Valine ester prodrug of Acyclovir.
  
  Valacyclovir (Valtrex) is the 1-valine ester (prodrug) of acyclovir that exhibits no activity until hydrolyzed in the intestinal wall or liver to acyclovir and its active metabolite. Its modified structure allows increased intestinal absorption and concomitant higher plasma levels of acyclovir. It demonstrates activity against HSV types 1 and 2, varicella-zoster virus, and cytomegalovirus. It exerts its effects by interfering with DNA synthesis through phosphorylation by viral thymidine kinase and subsequent inhibition of viral DNA polymerase, thereby inhibiting viral replication. Valtrex is indicated for the treatment of acute herpes zoster and recurrent genital herpes in immunocompetent adults. The most common side effects are headache, nausea, and vomiting.

• Indications

  Valacyclovir (Valtrex) is the 1-valine ester (prodrug) of acyclovir that exhibits no activity until hydrolyzed in the intestinal wall or liver to acyclovir and its active metabolite. Its modified structure allows increased intestinal absorption and concomitant higher plasma levels of acyclovir. It demonstrates activity against HSV types 1 and 2, varicella-zoster virus, and cytomegalovirus. It exerts its effects by interfering with DNA synthesis through phosphorylation by viral thymidine kinase and subsequent inhibition of viral DNA polymerase, thereby inhibiting viral replication. Valtrex is indicated for the treatment of acute herpes zoster and recurrent genital herpes in immunocompetent adults. The most common side effects are headache, nausea, and vomiting.
  Valacyclovir is the only antiviral agent approved for herpes labialis, for a 3-day course in the episodic treatment of recurrent genital herpes (2). Valacyclovir is indicated for recurrent genital herpes and is administered at 500 mg twice daily for 3 days at the onset of prodromal symptoms or at the first sign of infection.

• Pharmacology

  Valacyclovir (Valtrex), a valine ester prodrug of acyclovir, has a bioavailability three to five times that of acyclovir. This is due to its improved gastrointestinal absorption compared to acyclovir. Valacyclovir is rapidly and almost completely converted to acyclovir after oral administration, with levels comparable to those of intravenous acyclovir. This allows for twice-daily dosing, which may improve compliance and ultimate clinical efficacy. It is more costly than acyclovir.

Valaciclovir 준비 용품 및 원자재

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