Intellectual property information about effervescent hop tablets can be found here
http://www.wipo.int/pctdb/en/wo.jsp?WO=200...mp;DISPLAY=DESC
They do sound delicious
" For this preferred formulation, a 4: 1 mixture of sodium bicarbonate and calcium carbonate are included as effervescent materials, totaling approximately 49% of the final formulation. Approximately 9% of the formulation is citric acid, added as a buffering agent and pH neutralizer. A small quantity, approximately 4% of magnesium stearate, or alternatively stearic acid, is added for anti-caking. A small amount of silicon dioxide, approximately up to 10%, added to help tablet formation. Most preferably, to further enhance the activity of the effervescent hop tablet, a simple sugar, such as lactose or dextrose, or alternatively sorbitol, is also added, at approximately 2%. Approximately 3% cellulose and approximately 8% di-calcium phosphate are also added, as optional ingredients. "