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Heartburn and acid reflux

Heartburn is a burning feeling in the chest caused by stomach acid travelling up towards the throat (acid reflux). If it keeps happening, it's called gastro-oesophageal reflux disease (GORD).


The main symptoms of acid reflux are:

  • heartburn – a burning sensation in the middle of your chest
  • an unpleasant sour taste in your mouth, caused by stomach acid

You may also have:

  • a cough or hiccups that keep coming back
  • a hoarse voice
  • bad breath
  • bloating and feeling sick

Your symptoms will probably be worse after eating, when lying down and when bending over.


Lots of people get heartburn from time to time. There's often no obvious reason why.

Sometimes it's caused or made worse by:

  • certain food and drink – such as coffee, tomatoes, alcohol, chocolate and fatty or spicy foods
  • being overweight
  • smoking
  • pregnancy
  • stress and anxiety
  • some medicines, such as anti-inflammatory painkillers (like ibuprofen)
  • a hiatus hernia – when part of your stomach moves up into your chest

Simple lifestyle changes can help stop or reduce heartburn.


Speak to a pharmacist for advice if you keep getting heartburn.

They can recommend medicines called antacids that can help ease your symptoms.

It's best to take these with food or soon after eating, as this is when you're most likely to get heartburn. They may also work for longer if taken with food.


See a GP if:

  • lifestyle changes and pharmacy medicines are not helping
  • you have heartburn most days for 3 weeks or more
  • you have other symptoms, like food getting stuck in your throat, frequently being sick or losing weight for no reason

A GP can provide stronger treatments and help rule out any more serious causes of your symptoms.


A GP may prescribe a medicine called a proton pump inhibitor (PPI) that reduces how much acid your stomach makes. PPIs include:

You'll usually need to take this type of medicine for 4 or 8 weeks, depending on how serious your acid reflux is.