Dear Mr Eric
thanks for writing to HCmagic
A drug induced coma
is usually caused by OPIOIDS/SEDATIVES/HYPNOTICS/ANTIPSYCHOTICS when given in excessive dosage. why your Brother-in-law is in Drug induced coma is not clear. Opioids could have been used for pain relief in heart attack
. Nothing more can be derived out of it.
please write to us whenever you get more information.