Some ?file th? m??t fr??u?nt and ??v?r? h??lth ??n???u?n??? ?f overdose are irregular h??rt rhythm, heart ?tt??k?, ???zur??, ?nd ?tr?k??.Five or six situations every day, a man from Texas injects a dose of very carefully calculated fentanyl. He will it when he wakes up and just before he goes to work, and sometimes on breaks. It will make him drows