Metronidazole Buccal Tablets are usually taken by mouth until the tablets are completely dissolved. Metronidazole Buccal Tablets are a topical anti-infective drug that is commonly used clinically for inflammatory oral lesions caused by bacterial infections such as gingivitis, periodontitis, and mouth ulcers. The specific drug principle is to inhibit nucleic acid synthesis by destroying the DNA of microbial cells. The drug action occurs only during the period when metronidazole is partially reduced, and since this reduction usually occurs only in anaerobic bacteria and protozoa, it has relatively little effect on human cells or aerobic bacteria. How to use this drug: Place the drug in the gingival-cheek sulcus or mucosal tissue where inflammatory lesions are present, allowing the drug to adhere to the surface of the affected area as much as possible to better ensure its therapeutic effect. Patients may experience adverse symptoms such as dry mouth and mucosal irritation during the administration of the drug. Within 48 hours after taking Metronidazole Buccal Tablets, alcohol or food containing alcohol should be avoided to avoid disulfiram reaction, which may cause nausea and vomiting, tachycardia, shortness of breath and other adverse reactions.