Answer
Nausea, repeated vomiting, tremor, agitation, insomnia or palpitations can indicate toxicity. Severe vomiting, an irregular heartbeat or seizures require urgent assessment.
Sources for this answer
- Uniphyllin 200 mg prolonged-release tablets — Current selected SmPCemc · Summary of Product Characteristics
- NHS Specialist Pharmacy ServiceNHS Specialist Pharmacy Service · NHS medicine guidance
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.