Do not take ENO for more than 14 days. Inform your doctor if you have any high blood pressure, liver, kidney or heart conditions before using ENO. Let your doctor know in advance if you are on a low-sodium diet. Please seek medical advice before taking this product if you have an existing medical condition, are on medication, pregnant or breastfeeding. ENO may cause belching, gas, abdominal distension, and mild gastrointestinal irritation. ENO powder is indicated for adults and children aged 12 years and above. Keep it out of reach of children and pets. Store in a cool, dry place, protected from moisture, heat, and direct sunlight.