| 中文名称 | 厄他培南钠 |
| 英文名称 | Ertapenem sodium |
| CAS号 | 153773-82-1 |
| 分子式 | C22H26N3NaO7S |
| 分子量 | 499.51 |
| EINECS号 | 1308068-626-2 |
| 熔点 | >174oC (dec.) |
| 溶解度 | 可溶于DMSO(轻微)、甲醇(轻微)、水(轻微、超声处理) |
| 形态 | 粉末 |
| 颜色 | 白色至米色 |
| 水溶解性 | Fully miscible in water. Soluble in DMSO. |
| 稳定性 | 吸湿性、温度敏感 |
Ertapenem sodium inhibits
Streptococcus pneumoniae
with MIC
50
s values < 1mg/L.
Ertapenem sodium exhibits a bactericidal mode of action as shown by time-killing curves and exhibits a short postantibiotic effect (PAE) of 1.4-2.6 h against the Gram-positive strains but no PAE against Gram-negative strains.
Ertapenem sodium (50 mg/kg; s.c.; q6h; for 24 hours) shows substantial bactericidal activity against
S. pneumoniae
in the murine thigh infection model.
Ertapenem sodium exhibits an AUC
0-24
of 586 mg•h/L, C
max
of 140 mg/L following subcutaneous injection (mice 50 mg/kg).
| Animal Model: | Specific-pathogen-free female ICR mice (~25 g), thigh infection model |
| Dosage: | 50 mg/kg |
| Administration: | Subcutaneous injection, q6h, for 24 hours |
| Result: | Showed substantial bactericidal activities. |
| Animal Model: | Specific-pathogen-free female ICR mice (~25 g), thigh infection model |
| Dosage: | 20 mg/kg, 50 mg/kg, 100 mg/kg (Pharmacokinetic Analysis) |
| Administration: | Subcutaneous injection |
| Result: | AUC 0-24 (586 mg•h/L), C max (140 mg/L) at 50 mg/kg q6h dosing regimen. |