药品详细
Natamycin(纳他霉素)
化学结构式图
中文名
纳他霉素
英文名
Natamycin
分子式
C33H47NO13
化学名
(1R,3S,5R,7R,12R,22R,24S,25R,26S)-22-{[(3S,4S,5S,6R)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy}-1,3,26-trihydroxy-12-methyl-10-oxo-6,11,28-trioxatricyclo[22.3.1.0^{5,7}]octacosa-8,14,16,18,20-pentaene-25-carboxylic acid
分子量
Average: 665.7252
Monoisotopic: 665.304740595
Monoisotopic: 665.304740595
CAS号
7681-93-8
ATC分类
A01A 未知;A07A 未知;D01A 未知;G01A 未知;S01A 抗感染药
药物类型
small molecule
阶段
approved
商品名
同义名
基本介绍
Amphoteric macrolide antifungal antibiotic from Streptomyces natalensis or S. chattanoogensis. It is used for a variety of fungal infections, mainly topically. [PubChem]
生产厂家
- Alcon laboratories 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 | Not Available |
| Substructures | Not Available |
适应症
药理
| Indication | For the treatment of fungal blepharitis, conjunctivitis, and keratitis caused by susceptible organisms including Fusarium solani keratitis. |
| Pharmacodynamics | Natamycin is an antifungal drug for topical ophthalmic administration. It is a tetraene polyene antibiotic derived from Streptomyces natalensis. It possesses in vitro activity against a variety of yeast and filamentous fungi, including Candida, Aspergillus, Cephalosporium, Fusarium and Penicillium. Although the activity against fungi is dose-related, natamycin is predominantly fungicidal. Natamycin is not effective in vitro against gram-positive or gram-negative bacteria. Topical administration appears to produce effective concentrations of natamycin within the corneal stroma but not in intraocular fluid. |
| Mechanism of action | LIke other polyene antibiotics, Natamycin inhibits fungal growth by binding to sterols. Specifically, Natamycin binds to ergosterol in the plasma membrane, preventing ergosterol-dependent fusion of vacuoles, as well as membrane fusion and fission. This differs from the mechanism of most other polyene antibiotics, which tend to work by altering fungal membrane permeability instead. |
| Absorption | Systemic absorption should not be expected following topical administration, and as with other polyene antibiotics, absorption from the gastrointestinal tract is very poor. |
| Volume of distribution | Not Available |
| Protein binding | Not Available |
| Metabolism |
Not Available
|
| Route of elimination | Not Available |
| Half life | Not Available |
| Clearance | Not Available |
| Toxicity | Not Available |
| Affected organisms |
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| Pathways | Not Available |
理化性质
| Properties | |||||||||||||||||||||||||||||||||||||||||||
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| State | solid | ||||||||||||||||||||||||||||||||||||||||||
| Experimental Properties |
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| Predicted Properties |
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药物相互作用
食物相互作用
Not Available
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