So, it is possible that CBD will soon become the official drug prescribed by doctors for the treatment of various diseases. There is a lot of research being done on the compatibility of this product with other drugs, but CBD is based on natural ingredients only and may need to be taken on its own. I have been using CBD oil since last year for therapeutic purposes and to calm my nerves. Now I buy marijuana flowers and smoke daily in small doses, and at the same time, I am receiving treatment in the hospital. I am undergoing rehabilitation after a heart attack and receive a daily dose of essential vitamins to maintain my health. The doctor said that there is no problem in the fact that I smoke marijuana, as vitamins only strengthen my body.