DOXYCYCLINE

 


USP

Related compounds:
    *methacycline                       +2%
    *any impurity eluting before methacyline         +0.5%
    *6-epidoxycycline                     +2%
    *any impurity eluting after the main doxycycline peak  +0.5%
Crystallinity:                           meets the requirements
pH                                 5.0 ゛ 6.5
Water                                3.6% ゛ 4.6%
Assay                                880μg/mg ゛ 980μg/mg

Ph Eur

pH                                 5.0 ゛ 6.5
Specific optical rotation                     -113<゛ -130<
Related substances                         meets the requirements
Water                                3.6% ゛ 4.6%
Heavy metals                            +50 ppm
Sulphated ash                           +0.4%
Related compounds:
    *any impurity eluting before methacyline         +0.5%
    *methacycline                       +2%
    *6-epidoxycycline                     +2%
    *any impurity eluting after the main doxycycline peak  +0.5%
Assay                                95.0% ゛ 102.0%

Action and uses: An antibiotic of tetracycline, and an wide-spectrum antibiotic, used in the treatment of infection of Gram-positive cocci or Gram-negative bacilli, also effective for Rickettsia infections such as typhus, tsutsug-amushi disease etc. And also effective for amebic dysentery and atypical pneumonia.