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药品详细

Bumetanide(布美他尼)

化学结构式图
中文名
布美他尼
英文名
Bumetanide
分子式
C17H20N2O5S
化学名
3-(butylamino)-4-phenoxy-5-sulfamoylbenzoic acid
分子量
Average: 364.416
Monoisotopic: 364.10929245
CAS号
28395-03-1
ATC分类
C03C 未知
药物类型
small molecule
阶段
approved
商品名
同义名
基本介绍

A sulfamyl diuretic. [PubChem]

生产厂家
  • Baxter healthcare corp anesthesia and critical care
  • Bedford laboratories div ben venue laboratories inc
  • Hospira inc
  • Ivax pharmaceuticals inc sub teva pharmaceuticals usa
  • Sandoz inc
  • Teva parenteral medicines inc
  • Validus pharmaceuticals inc
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
  • Aminobenzoates
  • Benzenesulfonamides
  • Sulfanilamides
Substructures
  • Hydroxy Compounds
  • Benzyl Alcohols and Derivatives
  • Acetates
  • Benzoates
  • Aliphatic and Aryl Amines
  • Phenols and Derivatives
  • Sulfonyls
  • Ethers
  • Benzene and Derivatives
  • Aminobenzoates
  • Benzenesulfonamides
  • Carboxylic Acids and Derivatives
  • Aromatic compounds
  • Anisoles
  • Sulfanilamides
  • Sulfonamides
  • Benzoyl Derivatives
  • Phenyl Esters
  • Anilines
适应症
药理
Indication For the treatment of edema associated with congestive heart failure, hepatic and renal disease including the nephrotic syndrome.
Pharmacodynamics Bumetanide is a loop diuretic of the sulfamyl category to treat heart failure. It is often used in patients in whom high doses of furosemide are ineffective. There is however no reason not to use bumetanide as a first choice drug. The main difference between the two substances is in bioavailability. It is said to be a more predictable diuretic, meaning that the predictable absorption is reflected in a more predictable effect. Bumetanide is 40 times more potent than furosemide (for patients with normal renal function).
Mechanism of action Bumetanide interferes with renal cAMP and/or inhibits the sodium-potassium ATPase pump. Bumetanide appears to block the active reabsorption of chloride and possibly sodium in the ascending loop of Henle, altering electrolyte transfer in the proximal tubule. This results in excretion of sodium, chloride, and water and, hence, diuresis.
Absorption Bumetanide is completely absorbed (80%), and the absorption is not altered when taken with food. Bioavailability is almost complete.
Volume of distribution Not Available
Protein binding 97%
Metabolism
45% is secreted unchanged. Urinary and biliary metabolites are formed by oxidation of the N-butyl side chain.
Route of elimination Oral administration of carbon-14 labeled Bumex to human volunteers revealed that 81% of the administered radioactivity was excreted in the urine, 45% of it as unchanged drug. Biliary excretion of Bumex amounted to only 2% of the administered dose.
Half life 60-90 minutes
Clearance
  • 0.2 – 1.1 mL/min/kg [preterm and full-term neonates with respiratory disorders]
  • 2.17 mL/min/kg [neonates receiving bumetanide for volume overload]
  • 1.8 +/- 0.3 mL/min/kg [geriatric subjects]
  • 2.9 +/- 0.2 mL/min/kg [younger subjects]
Toxicity Overdosage can lead to acute profound water loss, volume and electrolyte depletion, dehydration, reduction of blood volume and circulatory collapse with a possibility of vascular thrombosis and embolism. Electrolyte depletion may be manifested by weakness, dizziness, mental confusion, anorexia, lethargy, vomiting and cramps. Treatment consists of replacement of fluid and electrolyte losses by careful monitoring of the urine and electrolyte output and serum electrolyte levels.
Affected organisms
  • Humans and other mammals
Pathways
Pathway Name SMPDB ID
Smp00088 Bumetanide Pathway SMP00088
理化性质
Properties
State solid
Experimental Properties
Property Value Source
melting point 230.5 °C PhysProp
water solubility >20 mg/mL (in base) Not Available
logP 2.6 Not Available
Predicted Properties
Property Value Source
water solubility 2.57e-02 g/l ALOGPS
logP 3.44 ALOGPS
logP 2.42 ChemAxon
logS -4.2 ALOGPS
pKa (strongest acidic) 4.69 ChemAxon
pKa (strongest basic) 2.7 ChemAxon
physiological charge -1 ChemAxon
hydrogen acceptor count 5 ChemAxon
hydrogen donor count 3 ChemAxon
polar surface area 118.72 ChemAxon
rotatable bond count 8 ChemAxon
refractivity 95.78 ChemAxon
polarizability 37.21 ChemAxon
药物相互作用
Drug Interaction
Amikacin Increased ototoxicity
Cisplatin Increased ototoxicity
Colesevelam Bile acid sequestrants such as colesevelam may decrease the absorption of loop diuretics such as bumetanide. Monitor for decreased serum concentrations/therapeutic effects of loop diuretics if coadministered with bile acid sequestrants. Separating the administration of doses by 2 or more hours may reduce (but not eliminate) the risk of interaction. The manufacturer of colesevelam recommends that drugs should be administered at least 1 hour before or 4 hours after colesevelam.
Deslanoside Possible electrolyte variations and arrhythmias
Digitoxin Possible electrolyte variations and arrhythmias
Digoxin Possible electrolyte variations and arrhythmias
Gentamicin Increased ototoxicity
Ginseng Ginseng may decrease the therapeutic effect of diuretic, bumetanide.
Ibuprofen The NSAID, ibuprofen, may antagonize the diuretic and antihypertensive effects of the loop diuretic, bumetanide.
Indomethacin The NSAID, indomethacin, may decrease the diuretic and antihypertensive effects of the loop diuretic, bumetanide.
Kanamycin Increased ototoxicity
Netilmicin Increased ototoxicity
Streptomycin Increased ototoxicity
Sulindac The NSAID, sulindac, decreases the diuretic and antihypertensive effects of the loop diuretic, bumetanide.
Tobramycin Increased ototoxicity
Trandolapril The loop diuretic, Bumetanide, may increase the hypotensive effect of Trandolapril. Bumetanide may also increase the nephrotoxicity of Trandolapril.
Treprostinil Additive hypotensive effect. Monitor antihypertensive therapy during concomitant use.
食物相互作用
  • Take with food to reduce irritation.

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