From the manufactures website:
100 Mag-Tab®SR caplets: Each caplet of Mag-Tab®SR contains 84 mg of elemental magnesium L-lactate dihydrate. Four 84 mg Mag-Tab SR caplets daily contain 336 mg of elemental magnesium and will meet the USRDA range for the average adult female and male (300-350 mg daily). Patients with kidney disease should not take magnesium supplements without the advice and direct supervision of a physician.
- Helps your body utilize calcium and potassium
- Helps maintain function of the heart
- Essential mineral
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.
Warning: If you have kidney disease, magnesium supplements should not be taken without the advice and direct supervision of a physician. Keep out of the reach of children. Package not child resistant.
Serving size: 2 Caplets Servings per container: 50
Recommended use: As a dietary supplement take 1 or 2 caplets every 12 hours or as directed by a physician.