Euthyrox generic name is Levothyroxine Sodium Tablet, which is usually taken once daily in the morning on an empty stomach. It should be taken more than 4 hours apart from other medications because some medications and foods can interfere with the absorption and metabolism of Levothyroxine Sodium Tablet, such as intestinal malabsorption and aluminum hydroxide and calcium carbonate. Levothyroxine Sodium Tablets should be taken 1 hour before breakfast and at intervals of 4 hours or more between doses of other drugs and certain foods. Some drugs and foods can affect the absorption and metabolism of levothyroxine sodium tablets, such as intestinal malabsorption and aluminum hydroxide, calcium carbonate, cholestyramine, aluminum sulfate, ferrous sulfate, dietary fiber additives and so on can affect the absorption of levothyroxine sodium tablets in the small intestine. Patients who need to take levothyroxine sodium tablets and calcium tablets are recommended to take medication under the guidance of a doctor.