My dad had end stage Pulmonnary Fibrosis. I talked to my step mom at 11:00 am, my dad was fine. She called me at 3:00 pm and said there was something wrong with him. I got there at 3:30 pm he was completely unresponsive and died 5 minutes later. She said he was anxious so she gave him 15 mg's of morphine and 2 mgs of lorazapam. He was still anxious so she gave him 30 more mg's of morphine. I can't help but believe he died of a drug overdose? Could this be the case?