Penciclovir

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Danger

• 유해·위험 문구

  H225：고인화성 액체 및 증기

  H315：피부에 자극을 일으킴

  H319：눈에 심한 자극을 일으킴

• 예방조치문구

  P210：열·스파크·화염·고열로부터 멀리하시오 - 금연 하시오.

  P233：용기를 단단히 밀폐하시오. 용기는 환기가 잘 되는 곳에 단단히 밀폐하여 보관하시오.

  P240：용기와 수용설비를 접지 및 접합시키시오.

  P241：폭발 방지용 장비[전기적/환기/조명/...]을(를) 사용하시오.

  P242：스파크가 발생하지 않는 도구를 사용하시오

  P243：정전기 방지 조치를 취하시오.

  P264：취급 후에는 손을 철저히 씻으시오.

  P264：취급 후에는 손을 철저히 씻으시오.

  P280：보호장갑/보호의/보안경/안면보호구를 착용하시오.

  P303+P361+P353：피부(또는 머리카락)에 묻으면 오염된 모든 의복은 벗거나 제거하시오 피부를 물로 씻으시오/샤워하시오.

  P305+P351+P338：눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.

  P332+P313：피부 자극이 생기면 의학적인 조치· 조언을 구하시오.

  P337+P313：눈에 대한 자극이 지속되면 의학적인 조치· 조언를 구하시오.

  P370+P378：화재 시 불을 끄기 위해 (Section 5. 폭발, 화재시 대처방법의 적절한 소화제)을(를) 사용하시오.

  P403+P235：환기가 잘 되는 곳에 보관하고 저온으로 유지하시오.

Penciclovir MSDS

• 2-Amino-9-[4-hydroxy-3-(hydroxymethyl)butyl]-3,9-dihydropurin-6-one

Penciclovir 화학적 특성, 용도, 생산

• 개요

  Vectavir was launched in the UK for herpes labialis. Penciclovir is synthetically available by two routes of four steps each from 2- (hydroxymethyl)butane-l,4-diol and is active against HSV-1, HSV-2 VZV but has limited activity against CMV. Vectavir is an acyclic guanosine analog that acts as a competitive inhibitor of DNA polymerase. It is a metabolic product of famcyclovir that is preferentially phosphorylated by viral infected cells (by thymidine kinases) over normal cells. The triphosphate has a low activity against cellular DNA polymerase which is one possible explanation for its low toxicity. While its spectrum of activity is similar to acyclovir, it is longer acting because its triphosphate is 20 times more stable and is not metabolized.

• 화학적 성질

  White Cyrstalline Solid

• 용도

  A deuterated version of Penciclovir, an antiviral

• Indications

  Penciclovir has activity against HSV-1, HSV-2, VZV, and HBV. After oral administration, famciclovir is converted to penciclovir by first-pass metabolism. Penciclovir has a mechanism of action similar to that of acyclovir. It is first monophosphorylated by viral thymidine kinase; then it is converted to a triphosphate by cellular kinases.

• 정의

  ChEBI: A member of the class of 2-aminopurines that is guanine in which the hydrogen at position 9 is substituted by a 4-hydroxy-3-(hydroxymethyl)but-1-yl group. An antiviral drug, it is administered topically for treatment of herpes labialis. A prodrug, famciclo ir, is used for oral administration.

• 원료

  Penciclovir is inactive against thymidine kinase-deficient strains of HSV.

• Pharmaceutical Applications

  A synthetic acyclic purine nucleoside analog, usually administered orally as the diacetyl ester, famciclovir, which acts as a prodrug undergoing rapid first-pass metabolism to release the active compound in vivo. The parent compound has virtually no oral bioavailability, but is supplied as a topical formulation.

• Pharmacokinetics

  Oral absorption, penciclovir： 5%
  famciclovir： 77%
  C_max famciclovir 250 mg oral： 1.6 mg/L after 0.5–1.5 h
  famciclovir 500 mg oral： 3.3 mg/L after 0.5–1.5 h
  famciclovir 750 mg oral： 5.1 mg/L after 0.5–1.5 h
  Plasma half-life： 2.1–2.7 h
  Volume of distribution： c. 1.5 L/kg
  Plasma protein binding： <20%
  Following absorption famciclovir is converted rapidly by enzyme-mediated deacetylation and oxidation to penciclovir. Food does not lead to any significant change in the availability or elimination.
  The pharmacokinetics in elderly subjects are similar to those seen in younger subjects, although small increases in AUC and plasma half-lives were seen, consistent with slightly decreased renal clearance.
  Renal excretion is the major route of elimination, 50–60% of an oral dose being recovered in the urine. After intravenous infusion, about 70% is excreted unchanged in the urine. After oral administration of famciclovir, penciclovir accounts for 82% of urinary drug-related material. The remainder includes metabolites, of which the largest is the 6-deoxy precursor of penciclovir. Renal clearance exceeds glomerular filtration, indicating renal tubular secretion.

• Clinical Use

  Penciclovir is approved as a topical formulation for the treatment of herpes labialis. In immunocompetent individuals, penciclovir shortens the duration of lesion presence and pain by approximately half a day when it is initiated within an hour of lesion development and applied every 2 hours during waking hours for 4 days.

• 부작용

  In clinical trials the incidence of adverse events after famciclovir, aciclovir and placebo were similar, the most common adverse events being headache and nausea.

Penciclovir 준비 용품 및 원자재

Penciclovir 공급 업체

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