What are Gaviscon Double Action Mixed Berry Flavour Tablets? Gaviscon Double Action Tablets are a soothing treatment for heartburn, acid reflux, and indigestion. These tablets can be chewed and swallowed without needing a glass of water, so you can take them whenever and wherever you suffer with heartburn. If you’re looking for a treatment for heartburn and indigestion that works quickly and can be taken on the go, these tablets could be the perfect solution for you. These tablets are available in peppermint and mixed berry flavours. How to take Gaviscon Double Action Mixed Berry Tabletd Take 2 – 4 Gaviscon Double Action Tablets after meals and at bedtime. Chew tablets thoroughly and then swallow, you shouldn’t need to take these tablets with a glass of water. Do not take more than four times a day, with a maximum daily amount of 16 tablets. If you take too many tablets, you may feel bloated, but are unlikely to come to any harm. However, if the bloating doesn’t go away, you should speak to your doctor right away.   Always read the patient information leaflet/packaging