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Reflux in babies

Reflux is very common. At least 40% of infants will experience reflux at some point, which may make them reluctant to feed.¹

What is reflux?

Infant reflux happens when a baby’s stomach contents escape back up into their oesophagus (food pipe), which can cause a baby to “spit up” milk or vomit. Reflux usually happens soon after a feed.

Although some babies with reflux do not seem upset by it, stomach acid can escape into the oesophagus along with food. This is why reflux is sometimes called “acid reflux” and can cause pain and irritation. Babies may become reluctant to feed or refuse to continue feeding even when they’re still hungry.

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What causes reflux?

Young babies may have an immature or weak valve between their stomach and the oesophagus. This may allow the stomach contents to escape through the valve back into the oesophagus.

As the valve linking the stomach and oesophagus matures, the signs of reflux lessen. By the time babies are 12 months of age, symptoms will usually have resolved altogether.

What are the symptoms of reflux in babies?

Symptoms of reflux include:

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Frequent spitting up, milk vomit, gulping or a reflux cough

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Difficulty sleeping or staying asleep

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Sudden bursts of crying as though in pain while feeding or soon after a feed

Loss of appetite

Reluctance to feed or refusing to feed while still hungry

How is reflux managed?

It’s important to talk to a healthcare professional for advice on how to manage reflux in babies, particularly if your baby’s reflux is interfering with their feeding or causing them distress.

Your doctor or healthcare professional can provide advice on reflux remedies or a reflux formula that may help your baby.

What else can I do?

You can also consider the following lifestyle changes:

Hold your baby in an upright position while you feed them

Hold your baby in an upright position while you feed them

Don’t put your baby to bed immediately after feeding

Don’t put your baby to bed immediately after feeding

After a feed, keep your baby in an upright position for 20-30 minutes

After a feed, keep your baby in an upright position for 20-30 minutes

Try giving smaller feeds at more frequent intervals

Try giving smaller feeds at more frequent intervals

Reflux
Novalac

Reflux

Learn more about how you can help manage reflux.

Frequently asked questions

Find answers to common questions about Novalac
and conditions that might impact your child’s feeding habits. 

Is Novalac Reflux a thickened formula for babies with reflux?

Yes, Novalac Reflux is a thickened formula which is has been specially formulated to help provide relief to babies with reflux symptoms. It is designed to thicken in the stomach and not in the bottle, so it is easy for baby to drink. Novalac Reflux helps to reduce the severity and frequency of reflux episodes including regurgitation and infant acid reflux.

The thickener increases the formula’s viscosity, which helps reduce the frequency and volume of spit-up by preventing milk from easily flowing back into the esophagus, providing comfort to babies with reflux.

Yes, clinical studies have demonstrated that Novalac Reflux effectively reduces reflux symptoms and spitting up in infants diagnosed with acid reflux.1,2

By reducing spit-up and acid reflux symptoms, Novalac Reflux may help decrease discomfort and fussiness associated with reflux in infants.

Need support or advice?

We offer a dedicated support line to assist you with any questions or concerns you may have about Novalac products.

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  1. The Royal Children’s Hospital, Melbourne, Australia, Clinical Practice Guideline – Gastrooesophageal reflux disease in infants, Oct 2019. Available at https://www.rch.org.au/clinicalguide/guideline_index/Gastrooesophageal_reflux_disease_in_infants/. Accessed Oct 2025.
  2. Xinias I, et al. Dig Liver Dis. 2005;37(1):23-27.

Welcome to NovaNutrition

Please take a moment to read this important message.

If you are able to breastfeed, breastfeeding is best for babies. Breastfeeding has many benefits, such as protecting your baby from infection while their immune system develops. It is important that you eat a healthy, balanced diet in preparation for and during breastfeeding.

Infant formula is designed to replace breast milk when an infant is not breastfed. Combining breast and bottle feeding in your baby’s first weeks of life may reduce your supply of breast milk and reversing a decision not to breastfeed is difficult. The social and financial implications of using infant formula should be considered when choosing a method of feeding.

Always follow the manufacturer’s instructions when preparing and using infant formula, including proper sterilisation of bottles and using boiled water. Improper use of an infant formula may make your baby ill.

We recommend that you consult your doctor, midwife, or health care professional for advice about feeding your baby.