How heroin affects people
Heroin is adsorbed quickly (comes to blood) with all administration ways. If intravenous injection, blood concentration peak is achieved during 1 minute at the latest, if inhalation or intramuscular injection – during 3-5 minutes. Heroin comes from blood in brain very quickly – during 15-30 seconds and accumulates there in high concentrations.
Brain absorbs about 70% of the entire heroin taken. Quick growth of heroin concentration in brain produces a feeling of so-called “wave”. Intensity of feelings depends on quantity of heroin taken and speed of its concentration growth in brain. Feelings of warmth, relaxation and euphoria appear after intake of heroin.