Eno Lemon-100grm Eno is India’s No 1 Antacid Brand. Eno Antacid/Digestive provides fast relief from acidity & gets to work in 6 secs by neutralizing excess stomach acid upon contact. Based on lab studies, ENO powder gets to work faster than leading liquid and tablet antacids. Nothing is better for fast relief from acidity and heartburn than ENO. Home remedies take time, Fight Acidity fast with ENO. ENO fights heartburn fast, so that without heartburn you can comfortably fall asleep. ENO works on 6 symptoms of Acidity and Heartburn. The leading antacid taken for providing instant relief from acidity, gastric discomfort and heart burn, Eno gets you back on track instantly, as it begins to work in six seconds - faster than other tablet and liquid antacids.