It is important to note that the duration of a heroin high can be unpredictable and may vary from person to person. More pure heroin tends to have a more potent effect, resulting in a longer-lasting high. On the other hand, impurities or adulterants in the drug can affect its strength and duration.
Long-term effects and duration
In this stage, the user may feel depressed, highly agitated, and suffer insomnia. This cycle of highs and lows is intense making addicts continuously want to get back to the first phase. Typically, dopamine is naturally released from the brain where it is recycled and returned to the cell it is initially released.
