A middle aged woman with asthma and a seizure disorder with severely painful nerve damage in her l arm from a gun shot wound is now expired. Autopsy could not uncover the source of her untimely death. Her widow believes, firmly, the death was a direct cause of the prescription coctail prescribed by her PCP and hand pediatrist. Maybe someone could help me with drug the drug interactions.
for pain
endocet, methadone, tizanidine, baclofen
for mental conditions
lexapro, alprazolam, haloperidol, promethazine, amitriptyline,
for seizures
clonazepam, phenytoin excap, dilantan, phenobarb,
for asthma
butorph, albuterol,

2 wks before her death, the patient ran out of meds, checked into the emergency room for withdrawl purposes. The doctor on dutie gave her 60 mg of demerol and promethazine (phenogrin) to ease her discomfort. She either arrested, comatosed, or her seizures worsened. She went into intesive care for 2 weeks. The day after her plunge, her doctor "fired" her, in his words "officially released her as a patient". (which is common with patients who fail to follow dr orders by not making appointments or refusing to comply with preventative medication orders. She was not guilty of either dismissable scenarios.
i want to know what drugs are bad mixtures, if the side effects of these drugs could have complicated any of her conditions, and if doctors can lawfully and morally prescribe such a pharmecutical coctail without expecting lethal results

can anyone help me? was this a wrongful death? could there be malpractice issues involved?