Heartburn during pregnancy

Suffering from heartburn during pregnancy? Don’t worry, up to 80% of pregnant women do.1

Causes & Symptoms

What causes heartburn during pregnancy? Well, there are usually two main reasons you’re suffering:

  1. Hormones released in pregnancy relax the muscles that normally keep stomach acid down.
  2. As your bump grows, it puts increasing pressure on your oesophagus, making it more likely for heartburn to occur.

What are the symptoms of heartburn during pregnancy?

  • A bloated feeling
  • Burning/pain in the chest area
  • Burping
  • Bringing up food
  • Feeling sick, or vomiting


Gaviscon Advance is suitable for you if you are pregnant or breastfeeding. It starts working in minutes and provides long-lasting relief (up to 4 hours). It's lower in sodium than our other formulations and it has an extra-strength formula designed to help you get on with your day.

Symptoms of heartburn can differ from a dull ache that lasts for 5 minutes after eating, to a burning pain that arises. If you are experiencing uncomfortable pains irregularly or more intensely than usual, always consult a doctor.

Yes! The influx of progesterone and the growing baby in your belly both work together to make heartburn during pregnancy a reality that up to ​80% of mothers face.1


Heartburn during pregnancy is common, and the good news is that there are suitable and effective treatments for it.

Gaviscon Advance is designed to act locally in the stomach. It has the lowest sodium content of any product in the Gaviscon range.

Medicine can affect the unborn baby. Always talk to your doctor or pharmacist before taking any medicine during pregnancy.

1Clinical Study; Assessment of the Safety and Efficacy of a Raft-Forming Alginate Reflux Suppressant (Gaviscon Liquid) for the Treatment of Heartburn during Pregnancy

You can also look to make lifestyle changes. Consider:

  • Eating small meals rather than three big portions a day
  • Watching your posture (a straight, upright back is good, especially when eating)