Gaviscon Advance by Reckitt Benckiser
This product, sold in the United Kingdom, is only available through online pharmacies.
The Gaviscon Advance made by Reckitt Benckiser actually maintains a list of online pharmacies that carry this product here:
Specifically, these online pharmacies are listed:
Amazon.com occasionally will have some in stock as well.
Please note that this information is provided for patient convenience. Our office does not vouch for nor has confirmed the legitimacy of these online pharmacies. Purchase at your own risk!