Tag: Drug induced ulcers

While about 20% of patients taking clarithromycin report adverse events, oral issues are a noted concern [1.4.4]. So, the question arises: **can clarithromycin cause mouth ulcers?** Yes, it is a known, though less common, side effect [1.4.1, 1.2.4].

According to the Mayo Clinic, long-term use of nonsteroidal anti-inflammatory drugs (NSAIDs) is a common cause of peptic ulcers, accounting for up to 24% of cases. While *H. pylori* infection is the most frequent cause, it is crucial to understand what drugs cause ulcers in the stomach, as certain medications significantly increase your risk by disrupting the body’s natural protective mechanisms.

While diarrhea is the most common side effect of co-amoxiclav, affecting about 9% of users, oral issues can also occur [1.8.2]. The question many ask is, can co-amoxiclav cause mouth ulcers, and if so, why does it happen and what can be done about it?