Ziverel Gastro Reflux Sachets containg hyaluronic acid, chondroitin sulfate and poloxamer and are used for the protective treatment of the oesophageal mucosa. nZiverel facilitates mucosal repair and relieves symptoms such as burning and pain. nZiverel is a medical device that allows rapid relief of gastro-oesophageal reflux symptoms such as pyrosis, epigastric pain, acid reflux, irritative cough and dysphonia. The most representative form of oesophageal mucosal disorders is gastro-oesophageal reflux disease (GORD).