Answer
Some people notice improvement after a couple of weeks, but it may take longer. Contact the prescriber if symptoms worsen or treatment does not appear helpful.
Sources for this answer
- NHSNHS · NHS medicine guidance
- Betahistine 16 mg 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.