In 1968, we harnessed the fast-dissolving power of Alka-Seltzer Plus Cold Sparkling Original Effervescent Tablets in a cold symptom relief medicine. Today we improved our formula by having less sodium, less residue and making it aspartame free. Each dose is individually wrapped and transforms in just 4 oz. of water into a liquid-fast medicine. Alka-Seltzer Plus works quickly to relieve your worst cold symptoms: Nasal congestion, Runny nose, Sore throat, Headache and body ache, Sinus pressure