My son who is just 17 has been on the drug for just a week and th...

My son who is just 17 has been on the drug for just a week and the very first day he was on it he experienced severe back pain. He was not able to stand up. It got worse, he felt as though he had to eat continuously or he would vomit, the more he ate the more nauseous he became. This is not somatic, because he had no idea that I had added a new medication to his regimen. He has ADD and a mild mood disorder. I have stopped the medication and will notify the doctor tomorrow. He was only on the medication for 4 days. I am a nurse practitioner and this medication is not worth the multitude of severe side effects for the diagnosis of mood stabilization.