In each 15 mL: Other Information: Each 15 mL contains: magnesium 500 mg. Store at room temperature. Avoid excessive heat above 40 degrees C (104 degrees F). Avoid freezing. Close cap tightly after use. Sugar free. Genuine. Saline laxative. Stimulant-free. Cramp free. No. 1 milk of magnesia brand. Phillips' is gentle and stimulant free so it works more like nature intended. Some other overnight laxatives containing stimulants can cause abdominal discomfort and cramps. Stimulant free Phillips is different. It encourages your body to take its natural course and relieves constipation comfortably. You don't have to feel worse before you feel better. Questions or comments? 1-800-986-0369 (Mon - Fri 9 am - 5 pm EST).