Ok we ll the question I have is are the symptoms I am having being caused because I started a new medication while I am on 70 mg. of liquid methadone a day. The new mods I am taking are risperidone a along with benztropine messy late 1mg tabs. For the muscle aches the risperidone causes me. I don t think conjenton would cause these symptoms.....1) total body stiffness 2) hands swollen and cramps 3) crampy and stiff 4) wicked stiff back from lower neck to base of spine. I feel like I need a wheel chair to get around. That is just not ok to me even with the conjenton. That s where my question come in. Is there any information about either of these meds having bad reactions when mixed with methadone? I would really like to have that information if it exists. I have enough pain in my body as it is now , I really don t need anyone s he to help give me anymore. Believe me I really don t need anymore than I ve already got