用户名: 密   码:
注册 | 忘记密码?
药品详细

Betazole(培他唑)

化学结构式图
中文名
培他唑
英文名
Betazole
分子式
C5H9N3
化学名
2-(1H-pyrazol-5-yl)ethan-1-amine
分子量
Average: 111.1451
Monoisotopic: 111.079647303
CAS号
105-20-4
ATC分类
V04C 未知
药物类型
small molecule
阶段
approved
商品名
同义名
基本介绍

A histamine H2 agonist used clinically to test gastric secretory function. [PubChem]

生产厂家
  • Eli lilly and co
封装厂家
参考
Synthesis Reference Not Available
General Reference Not Available
剂型
规格
化合物类型
Type small molecule
Classes
  • Pyrazoles
Substructures
  • Pyrazoles
  • Aliphatic and Aryl Amines
  • Heterocyclic compounds
  • Aromatic compounds
  • Imines
适应症
药理
Indication For use clinically to test gastric secretory function.
Pharmacodynamics Betazole is a histamine H2 agonist used in a test for measuring maximal production of gastric acidity or anacidity. This measurement can be used to diagnose diseases such as Zollinger-Ellison syndrome, whereby the volume of gastric and basal secretions is measured following betazole administration (greater than 60% of the maximal acid secretion following betazole stimulation). In another test, gastritis can be diagnosed given late absence of gastric acid which is unresponsive to betazole stimulation. Betazole can be used as a gastric secretory stimulant instead of histamine with the advantage of not provoking side effects and thus not requiring the use of antihistaminic compounds.
Mechanism of action Betazole is a histamine analogue. It produces the same effects as histamine, binding the H2 receptor which is a mediator of gastric acid secretion. This agonist action thereby results in an increase in the volume of gastric acid produced.
Absorption Rapid and complete.
Volume of distribution Not Available
Protein binding > 99%
Metabolism
Not Available
Route of elimination Not Available
Half life Not Available
Clearance Not Available
Toxicity Not Available
Affected organisms
  • Humans and other mammals
Pathways Not Available
理化性质
Properties
State liquid
Experimental Properties
Property Value Source
melting point < 25 °C PhysProp
boiling point 120.5 °C at 5.00E-01 mm Hg PhysProp
logP 0.1 Not Available
Predicted Properties
Property Value Source
water solubility 1.56e+02 g/l ALOGPS
logP -0.64 ALOGPS
logP -0.62 ChemAxon
logS 0.15 ALOGPS
pKa (strongest acidic) 14.52 ChemAxon
pKa (strongest basic) 9.79 ChemAxon
physiological charge 1 ChemAxon
hydrogen acceptor count 2 ChemAxon
hydrogen donor count 2 ChemAxon
polar surface area 54.7 ChemAxon
rotatable bond count 2 ChemAxon
refractivity 32.96 ChemAxon
polarizability 11.96 ChemAxon
药物相互作用
食物相互作用
Not Available

返回 | 收藏