Can you use Qinggonglianwan with metronidazole?

Metronidazole is a nitroimidazole derivative that can be made into metronidazole suppositories, metronidazole tablets, etc. Metronidazole tablets are used as an example for illustration. Stomach-cleansing Huanglian Pills can usually be used together with Metronidazole Tablets, and no drug interaction will occur between the two.
Qing stomach Huanglian pill is a kind of Chinese patent medicine, the composition of herbs have Huanglian, Gypsum, Platycodonopsis, Glycyrrhiza glabra, Zhimai, Xuanshen, Di Huang, Mudanpi, smallpox pollen, forsythia, gardenia and so on, has the effect of clearing the stomach and diarrhea, detoxification and elimination of swelling, used for the sores on the tongue and mouth, the gingival and pharyngeal swelling and pain in the disease. Pregnant women should avoid smoking, alcohol and spicy food, and should not take tonic Chinese medicine at the same time during the period of medication.
Metronidazole tablets have inhibitory activity on anabolic bacilli, anaerobic cocci and vaginal Gardnerella, etc., and have therapeutic effects on female trichomonas vaginitis, urinary tract trichomoniasis, ulcerative gingivitis, and so on. Do not use metronidazole in patients who are allergic to nitroimidazole, metronidazole or any of the excipient components, pregnant women in the first trimester of pregnancy, patients who have taken disulfiram within two weeks.
These two drugs usually have no drug reactions and can be taken together. However, it is recommended to consult a doctor before taking them.