Heroine shows up positive on opiate-tests.
Single use
Heroine detection time in blood: 8-10 hours
Heroine detection time in urine: 2-3 days
Regular use
Heroine detection time in blood: 10-12 hours
Heroine detection time in urine: 3-4 days
Chronic use
Heroine detection time in blood: 12-24 hours
Heroine detection time in urine: 5-7 days