I am taking 25 mg of Toprol XL once a day at bedtime and it is e...

I am taking 25 mg of Toprol XL once a day at bedtime and it is effectively sedating as well as antiarrhythmic. However, I feel tired and I end up taking naps much of the day, which is extremely unusual. Actually, I am getting twice the amount of sleep I have ever gotten. Some of the side effects and symptoms that others are mentioning on this board are also symptoms of magnesium deficiency, which is the cause of many cardiovascular problems in the US and West due to a naturally magneisum deficient diet based upon refined wheat. ******