However, the solvent and other parameters such as pH, temperature, Oxygen or the presence of cations have been suggested to influence keto-enol tautomerism, the epimerisation of the dimethylamino group in C4, facilitating the formation of typical degradation products (including epimers) of doxycycline, leading to drug inactivation (3033)
The evidence did not establish effectiveness, and recognised evidence-based withdrawal treatments are available
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A pathologist will examine the tissue under a microscope to look for features of specific liver diseases, such as Wilson disease, and check for liver damage and cirrhosis