Answer
Yes. Excessive cholinergic activity can cause paradoxical weakness, twitching, secretions and gastrointestinal symptoms. Worsening disease can look similar, so urgent clinical assessment may be needed.
Sources for this answer
- Mestinon 60mg Tablets — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.