Azithromycin is the second generation of major cyclolactone drugs, which are used to treat respiratory and cf.To treat a variety of pathogens causing respiratory tract infection of children and adults, genital tract chlamydia trachomatis infection, etc.Azithromycin have been to many countries and regions in medical guidelines recommend recommended as thefirst-line treatment of infection drugs (such as the United States, Japan, the United States and China)
Azithromycin is Suitable for sensitive caused by the bacterium respiratory tract,skin soft tissue infection caused by the original body of garment of sexually transmitted diseases.For influenzae, pneumococci and mo draw CARDS he caused by bacteria etc of acute brochitis, chronic obstructivepulmonary disease amalgamative infection, pneumonic wait for the efficient above 90%, bacterial remoal reach 85%.
Peb muaj ntau lub Hoobkas zoo nrog kev koom tes sib sib zog nqus, uas tuaj yeem muab koj cov khoom zoo thiab cov nqi sib tw. Thiab peb tseem tuaj yeem muab cov luv nqi rau kev yuav khoom ntau.Thiab peb koom tes nrog ntau lub tuam txhab xa khoom xa tuaj, tuaj yeem xa cov khoom lag luam kom nyab xeeb thiab ntseeg nkaws rau koj txhais tes. Lub sij hawm xa tuaj yog li 3-20 hnub tom qab tau txais kev pom zoo ntawm kev them nyiaj.
Tests |
Acceptance Criteria |
Cov txiaj ntsig |
|
Characters |
white or almost white crystalline powder, no order and bitter. Practically insoluble in water, freely soluble in anhydrous ethanol and in methylene chloride |
Ua raws |
|
Kev txheeb xyuas |
(1) IR: Conforms to the Azithromycin RS spectrum (2) HPLC: The retention time of azithromycin peak in the chromatogram of the Assay preparation corresponds to that in the chromatogram of the Standard preparation, as obtained in the Assay |
Ua raws |
|
Specific rotation |
-45°~-49°(Anhydrous subatance 20mg/ml dehydrated alcohol) |
-47° |
|
Crystallinity |
Meets the requirement |
Ua raws |
|
PH |
9.0~11.0(2mg/ml methanol-water(1:1)) |
10.1 |
|
Water |
4.0%~5.0% |
4.3% |
|
Residue on Ignition |
≤0.3% |
0.02% |
|
Heavy metals |
≤0.0025% |
less 0.0025% |
|
Related substances (HPLC) |
(1) desosaminylazithromycin |
≤0.3% |
0.02% |
N-demethylazithromycin |
≤0.7% |
0.44% |
|
(2) Any other impurity |
≤ 1.0% |
0.84% |
|
(3) Total impurity |
≤3.0% |
1.6% |
|
Residual solvents |
Methylene Clloride |
≤600ppm |
Not detected |
Acetone |
≤5000ppm |
1306.5ppm |
|
Assay(HPLC) |
945~1030μg/mg (Anhydrous substance) |
966μg/mg |
|
Xaus |
Conforms to USP32 specification for Azithromycin |
Cov khoom no yog dab tsi?
Azithromycin is a semi-synthetic 15-membered macrolide antibiotic. White or quasi-white crystalline powder; odorless, bitter; slightly damp. This product is soluble in methanol, acetone, chloroform, anhydrous ethanol or dilute hydrochloric acid, and almost insoluble in water.
Daim ntawv thov
Azithromycin is similar to erythromycin in antimicrobial spectrum and has a strong effect, which is 4 times stronger than erythromycin for Haemophilus influenzae and Neisseria gonorrhoeae, 2 times stronger than erythromycin for Legionella, and also stronger than erythromycin for Clostridium spp. for most gram-negative bacteria, and more effective than erythromycin in Staphylococcus aureus infection. In addition, this product also has a good killing effect on Toxoplasma and Treponema pallidum.
Cov khoom qeb