Antacid use: pharmacist warns people who regularly take Rennies or Gaviscon

A UK pharmacist and the NHS said frequent use of over-the-counter antacids like Rennies or Gaviscon can mask underlying conditions and raise the risk of side effects; the pharmacist reported encouraging people who use them regularly to speak with a GP.

A UK pharmacist has issued a warning about regular use of over-the-counter antacids such as Rennies and Gaviscon. These medicines are commonly available as chewable tablets or liquids and are used to relieve indigestion and heartburn. The NHS and the pharmacist said antacids work by neutralising stomach acid but do not treat underlying causes. They reported that long-term or frequent use can increase side-effect risk and might hide more serious symptoms. Key points: - Antacids such as Rennies and Gaviscon are sold over the counter and typically relieve symptoms for a few hours. - The NHS states that antacids do not treat the underlying cause and that long-term use is not recommended. - Pharmacist Anum said in a TikTok video that people taking these medicines a few times a week or more may be overly reliant on them. - Both the pharmacist and the NHS reported that overuse can increase the risk of side effects and could mask more serious conditions; the pharmacist encouraged discussing frequent use with a GP. Summary: Reported comments from a pharmacist and the NHS emphasise that frequent use of over-the-counter antacids can mask underlying health issues and increase the chance of side effects. They reported that people using these medicines regularly were encouraged to discuss their symptoms with a GP.