Some products that may interact with this drug include phosphate binders,antacids,laxatives and other vitamins as they may contain calcium and phosphorus.

This product is lightly safe during pregnancy and breastfeeding when used in daily amounts. Do not use higher doses unless instruced by your health care provider.

The recommended dietary allowance (RDA) Magnesium for adults is 310 mg to 420 mg a day depending on age and gender. The recommended dietary allowance (RDA) Vitamin D3 for adults is 400 mg to 1000 mg.

No major side effects have been reported. Mild side effects of taking too much vitamin D include weakness, fatigue, sleepiness, headache, loss of apitite, dry mouth, metallic taste and vomiting. This holds for all forms of Vitamin D3.

Generally men and women having low serum magnesium levels and too much stomach acid such as stomach upset, heartburn, and acid indigestion can take this product.Magnesium is very important for the normal functioning of cells, nerves, muscles, bones, and the heart. Usually, a well-balanced diet provides normal blood levels of magnesium. However, certain situations cause your body to lose magnesium faster than you can replace it from your diet. These situations include treatment with "water pills" (diuretics such as furosemide, hydrochlorothiazide), a poor diet, alcoholism, or other medical conditions (e.g., severe diarrhea/vomiting, stomach/intestinal absorption problems, poorly controlled diabetes).