Answer
It can provide short-term relief from acid-related symptoms such as heartburn, but it does not prevent reflux or treat its underlying cause.
Sources for this answer
- Rennie 750mg Medicated Chewing Gum — Current selected SmPCemc · Summary of Product Characteristics
- NHSNHS · NHS medicine guidance
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.