Hi I m asking for my friend he is very poor and disabled. He wants to know if you take the following meds all at once what could happen would it make you sick have heart problems or die? The meds taken all at once are 330 mg methadone. 6000 mg seraquel. 75 mg clonazapam which he would take all at once what would happen like heart problems thank you. Sorry he s poor and disabled oh plus 6 bags of heroin no worried he does not want to die just curious thank you