Answer
Yes. Repeated or prolonged dextromethorphan use can cause dependence and withdrawal symptoms. Escalating use or use for unintended effects requires medical or pharmacy advice.
Sources for this answer
- Multi-Action ACTIFED Dry Coughs — 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.