Mintox Antacid has a lemon flavor and provides fast relief for: acid indigestion, heartburn, sour stomach, upset stomach associated with these symptoms, pressure and bloating commonly referred to as gas. Directions: shake well before using; adults and children 12 years and older: take 2 to 4 teaspoonful two times a day or as directed by a physician. Do not take more than 8 teaspoonful in 24 hours or use the maximum dosage for more than 2 weeks. Children under 12 years: consult a physician. Warnings: Ask a doctor before use if you have kidney disease or a magnesium-restricted diet. Ask a doctor or pharmacist before use if you are presently taking a prescription drug. Antacids may interact with certain prescription drugs.