Pure heroin (diacetylmorphine) is a white powder with a bitter taste abused for its euphoric effects. Heroin, a highly addictive drug, is derived from the morphine alkaloid found in opium poppy plant (Papaver somniferum) and is roughly 2 to 3 times more potent than morphine. It is usually injected, smoked or snorted up the nose. It exhibits euphoric ("rush"), anti-anxiety and pain-relieving properties.
Contact emergency personnel immediately. Heroin overdose is a medical emergency that requires treatment with naloxone. Call 911 for an emergency transport in the US and Canada.
Signs of an opioid overdose include extreme drowsiness, blue lips and fingernails, slow or halted breathing, pinpoint pupils, slow heart rate, coma, death.
Occurring more frequently in the U.S., heroin purchased on the street may be "cut" or contaminated with other dangerous and extremely potent opioids, such as fentanyl or carfentanyl. These agents are often fatal to the user, and deaths have been reported.