Since Strattera is not a stimulant like Ritalin or Adderal (Strattera is a Selective Neurotonin Reputake Inhibitor), I don't think there would be any life threatening effects. I've personal combined the two and I felt that the cocaine's effects may have been slightly muted by the Strattera, or it could have just been mediocre blow. None the less, I am not a doctor, and I would suggest that you read more into the subject.