미녹시딜

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Warning

• 유해·위험 문구

  H302：삼키면 유해함

  H315：피부에 자극을 일으킴

  H319：눈에 심한 자극을 일으킴

  H335：호흡 자극성을 일으킬 수 있음

• 예방조치문구

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

미녹시딜 MSDS

• 6-(1-Piperidinyl)-2,4-pyrimidinediamine-3-oxide

미녹시딜 화학적 특성, 용도, 생산

• 개요

  Minoxidil is a peripheral vasodilator that directly relaxes vascular smooth musculature, thus, lowering systolic and diastolic pressure. Its action is linked to the activation of calcium channels. Open calcium channels cause hyperpolarization of smooth muscle cells, which in turn, reduces the flow of calcium ions into the cell, which is necessary for supporting vascular tonicity. However, when taking minoxidil, tachycardia, elevated renin secretion, and water and sodium ion retention all appear simultaneously with hypotension.

• 화학적 성질

  White Crystalline Solid

• 용도

  Used as an antihypertensive and antialopecia agent. Minoxidil activates ATP-activated K+ channels

• 정의

  ChEBI: Minoxidil is a pyrimidine N-oxide that is pyrimidine-2,4-diamine 3-oxide substituted by a piperidin-1-yl group at position 6. It has a role as a vasodilator agent and an antihypertensive agent. It is a pyrimidine N-oxide, a member of piperidines and an aminopyrimidine.

• 일반 설명

  Minoxidil, 2,4-diamino-6-piperidinopyrimidine-3-oxide . It is converted to minoxidil sulfate in the liver bya sulfotransferase enzyme.
  The antihypertensive properties of minoxidil are similarto those of hydralazine hydrochloride, in that minoxidil candecrease arteriolar vascular resistance. Minoxidil exerts itsvasodilatory action by a direct effect on arteriolar smoothmuscle and appears to have no effect on the CNS or on theadrenergic nervous system in animals. The serum half-lifeis 4.5 hours, and the antihypertensive effect may last up to24 hours.

• 생물학적 활성

  Antihypertensive. Antialopecia agent. K + channel (K ATP ) activator.

• Pharmacokinetics

  Minoxidil is absorbed from the GI tract and is metabolized to its active sulfate metabolite. Plasma concentrations for minoxidil sulfate peak within 1 hour and then decline rapidly. Following an oral dose of minoxidil, its hypotensive effect begins in 30 minutes, is maximal in 2 to 8 hours, and persists for approximately 2 to 5 days. The delayed onset of the hypotensive effect for minoxidil is attributed to its metabolism to its active metabolite. The drug is not bound to plasma proteins. The major metabolite for minoxidil is its N-O-glucuronide, which unlike the sulfate metabolite is inactive as a hypotensive agent. Approximately 10 to 20% of an oral dose of minoxidil is metabolized to its active metabolite, minoxidil O-sulfate, and approximately 20% of minoxidil is excreted unchanged.

• Clinical Use

  Minoxidil is used for severe hypertension that is difficultto control with other antihypertensive agents. The drug hassome of the characteristic side effects of direct vasodilatorydrugs. It causes sodium and water retention and may requirecoadministration of a diuretic. Minoxidil also causes reflextachycardia, which can be controlled by use of a -adrenergicblocking agent.
  Minoxidil topical solution is used to treat alopecia androgenitica(male-pattern baldness). Although the mechanismis not clearly understood, topical minoxidil is believed to increasecutaneous blood flow, which may stimulate hairgrowth. The stimulation of hair growth is attributed to vasodilationin the vicinity of application of the drug, resultingin better nourishment of the local hair follicles.

• 부작용

  Adverse reactions include local irritation and contact dermatitis. If the treatment is discontinued, clinical regression occurs within 3 months to the state of hair thinning that would have occurred had the treatment not been started. Twice-daily treatment is more efficacious than once-daily application. Women who use the5%concentrationmay note the development of facial hair, which is reversible on discontinuation of the medication. The 5% concentration can be more irritating than the 2% solution.

• Drug interactions

  When minoxidil is administered with diuretics or other hypotensive drugs, the hypotensive effect of minoxidil increases, and concurrent use may cause profound orthostatic hypotensive effects.

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