They come with their possible side effects. Some common calcium channel blockers are Norvasc, Procardia, Cardene, Calan, Plendil, Verapamil. Magnesium is usually dosed at 500-2000 mg. Adequate magnesium helps the tissues to retain potassium which is another blood pressure regulating mineral. Potassium is usually dosed at 200-300 mg twice daily with meals.
Enough calcium is important for blood pressure regulation.
Studies show 1000 mg of a daily calcium supplement slightly lowers blood pressure. But studies also show that too much calcium relative to the amount of magnesium will actually increase blood pressure which is why mineral balance is so important. So many women are given a plain calcium supplement for supposed prevention of osteoporosis. Taking this without the proper ratio of magnesium only serves to worsen all matters. The ideal ratio is the supplementation of an equal amount of both, but since magnesium is laxative, some people cannot tolerate that much.