 Based on the Seal study, she was concerned that Narcan kits may encourage 35% of drug abusers to use greater amounts of heroin because they thought overdosing isn't as likely, again leading to unintended consequences.Madras also felt that in the presence of healthcare professionals, the opportunity to provide detoxification and referral to treatment would be greater than in a "take-home" narcan provision program.She was concerned that in a "take-home" narcan program, not all resuscitated heroin overdose events could be safely left alone.