Vitamin and mineral supplements   Although the effects of vitamin and mineral supplements are not common, they may occur.       The instructions here are designed to help you use the supplements safely and consciously. You should consult a physician before taking any supplement if you suffer from a chronic disease that requires medical care medical or pharmaceutical. In fact, if you have any kind of medical problem, your doctor or… Your pharmacist needs to know what kind of supplement you are taking before treating you Prescribed by a doctor or over-the-counter medications. If you are pregnant, nursing, or…