Pyridostigminbromid

Gefahreninformationscode (GHS)

• Bildanzeige (GHS)

  

• Alarmwort

  Achtung

• Gefahrenhinweise

  H317：Kann allergische Hautreaktionen verursachen.

• Sicherheit

  P262：Nicht in die Augen, auf die Haut oder auf die Kleidung gelangen lassen.

  P280：Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.

Mestinon Chemische Eigenschaften,Einsatz,Produktion Methoden

• R-Sätze Betriebsanweisung:

  R26/27/28:Sehr giftig beim Einatmen, Verschlucken und Berührung mit der Haut.
  R43:Sensibilisierung durch Hautkontakt möglich.

• S-Sätze Betriebsanweisung:

  S22:Staub nicht einatmen.
  S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
  S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).

• Beschreibung

  Pyridostigmine is an inhibitor of acetylcholinesterase (AChE) and butyrylcholinesterase (BChE; IC₅₀s = 0.35 and 1 μM, respectively, for the human enzymes). Pyridostigmine (10 μM) reduces decreases in AChE activity induced by the organophosphate pesticides diisopropyl fluorophosphate, chlorpyrifos-oxon, diazinon-oxon, paraoxon, and malaoxon in isolated bovine red blood cells. It also reduces soman-induced membrane depolarization and decreases in AChE activity in isolated human muscle bundles in a concentration-dependent manner. Pyridostigmine (3 mg/kg per day for four weeks) prevents tachycardia and increases in sympathetic tone in mice following myocardial infarction induced by left coronary artery ligation. Formulations containing pyridostigmine have been used in the treatment of myasthenia gravis and as neuromuscular protective agents against organophosphate poisoning.

• Chemische Eigenschaften

  White Solid

• Verwenden

  Cholinergic, used in the treatment of myasthenia gravis, and is a pre-exposure antidote to chemical warfare agents.

• Definition

  ChEBI: Pyridostigmine bromide is a pyridinium salt.

• Trademarks

  Mestinon (Valeant); Regonol (Sandoz).

• Allgemeine Beschreibung

  Pyridostigmine bromide,3-hydroxy-1-methylpyridinium bromide dimethylcarbamateor pyridostigmine bromide (Mestinon), occurs as a white, hygroscopic,crystalline powder with an agreeable, characteristicodor. It is freely soluble in water, alcohol, and chloroform.
  Pyridostigmine bromide is about one fifth as toxic asneostigmine. It appears to function in a manner similar tothat of neostigmine and is the most widely used anticholinesteraseagent for treating myasthenia gravis. Theliver enzymes and plasma cholinesterase metabolize thedrug. The principal metabolite is 3-hydroxy-N-methylpyridinium.Orally administered pyridostigmine has a half-lifeof 90 minutes and a duration of action of between 3 and6 hours.

• Biochem/physiol Actions

  Acetylcholinesterase inhibitor.

• Clinical Use

  Myasthenia gravis

• Arzneimittelwechselwirkung

  Potentially hazardous interactions with other drugs
  Aminoglycosides, clindamycin and polymyxins antagonise effects of pyridostigmine.

• Stoffwechsel

  Pyridostigmine undergoes hydrolysis by cholinesterases and is also metabolised in the liver. It appears that 75% of the plasma clearance of pyridostigmine depends on renal function. 3-Hydroxy-N-methylpyridinium has been identified as one of the 3 metabolites isolated from the urine. Pyridostigmine is excreted mainly in the urine as unchanged drug and metabolites.

Mestinon Upstream-Materialien And Downstream Produkte

Pyridostigminbromid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global(338)Suppliers

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