Alka Seltzer Plus Max Strength Cough and Mucus, 14 Extended Release Tablets in one Box Sale! from 1109 1331 /per Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Controls and suppresses cough. Thins and loosens mucus. 1 pill per dose. Do not consume more than 2 tablets in 24 hours. Guaifenesin 1200 mg/ Expectorant Dextromethorphan Hydrobromide 60mg/ Cough Suppressant Qty available:100 Tweet