Gout is a common disorder of uric acid metabolism that can lead to deposition of monosodium urate (MSU) crystals in soft tissue, recurrent episodes of debilitating joint inflammation, and, if untreated, joint destruction and renal damage.
Composition[edit] Alka-Seltzer contains three active ingredients; aspirin (acetylsalicylic acid) (ASA), sodium bicarbonate, and anhydrous citric acid. The aspirin is a pain reliever and anti-inflammatory, and the sodium hydrogen carbonate and citric acid form an antacid by their effervescent reaction with water.
Generally, seltzer water has no added sodium salts, while club soda still retains the sodium salts. Sodium bicarbonate, sodium chloride, sodium phosphate and sodium citrate are added to club soda... Seltzer and carbonated water are the same thing. Club soda is slightly different.