Hello everyone, I am stuck in doing assay of Erythromycin tablet following USP 41 since I have no knowlegde of antibiotic assay.
Previously, I tested the content of the raw material Erythromycin following USP 41 monograph using HPLC method and a perfect result was obtained.
Therefore, my question is: "Can I apply the assay method of Erythromycin raw material to my finished product instead of using antibiotic assay method?". Also, the requirement of our product does not mention about bioactivity but content only (from 95.0% - 105.0%).
Any help would be highly appreciated. Thanks in advance.