Methyloctatropine bromide

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Anisotropine methylbromide is a quaternary ammonium compound. Its use as treatment adjunct in peptic ulcer has been replaced by the use of more effective agents. Depending on the dose, anisotropine methylbromide may reduce the motility and secretory activity of the gastrointestinal system, and the tone of the ureter and urinary bladder and may have a slight relaxant action on the bile ducts and gallbladder. In general, smaller doses of anisotropine methylbromide inhibit salivary and bronchial secretions, sweating, and accommodation; cause dilatation of the pupil; and increase the heart rate. Larger doses are required to decrease motility of the gastrointestinal and urinary tracts and to inhibit gastric acid secretion.

Contents 1 Synonyms 2 Properties 3 Pharmacology 4 Mechanism of Action 5 Absorption 6 External Link

[edit] Synonyms

• methyloctatropine bromide
• ANISOTROPINE METHYLBROMIDE
• C06830
• 80-50-2
• Endovalpin
• Lytispasm
• Octatropine
• Valpin 50

[edit] Properties

Molecular Weight	362.34548 [g/mol]
Molecular Formula	C17H32BrNO2
H-Bond Donor	0
H-Bond Acceptor	3
Rotatable Bond Count	7
Exact Mass	361.161642
MonoIsotopic Mass	361.161642
Topological Polar Surface Area	26.3
Heavy Atom Count	21
Formal Charge	0
Complexity	318
Isotope Atom Count	0
Defined Atom StereoCenter Count	2
Undefined Atom StereoCenter Count	0
Defined Bond StereoCenter Count	0
Undefined Bond StereoCenter Count	0
Covalently-Bonded Unit Count	2

[edit] Pharmacology

Anisotropine methylbromide is a quaternary ammonium compound. Its use as treatment adjunct in peptic ulcer has been replaced by the use of more effective agents. Depending on the dose, anisotropine methylbromide may reduce the motility and secretory activity of the gastrointestinal system, and the tone of the ureter and urinary bladder and may have a slight relaxant action on the bile ducts and gallbladder. In general, smaller doses of anisotropine methylbromide inhibit salivary and bronchial secretions, sweating, and accommodation; cause dilatation of the pupil; and increase the heart rate. Larger doses are required to decrease motility of the gastrointestinal and urinary tracts and to inhibit gastric acid secretion.

[edit] Mechanism of Action

Quaternary ammonium compounds such as anisotropine methylbromide inhibit the muscarinic actions of acetylcholine on structures innervated by postganglionic cholinergic nerves as well as on smooth muscles that respond to acetylcholine but lack cholinergic innervation. These postganglionic receptor sites are present in the autonomic effector cells of the smooth muscle, cardiac muscle, sinoatrial and atrioventricular nodes, and exocrine glands.

[edit] Absorption

Gastrointestinal absorption is poor and irregular. Total absorption after an oral dose is about 10 to 25%.

[edit] External Link

• DB00517