Heroin is perhaps the most notorious of all illicit drugs, with a dark and frightening reputation that is well earned. A byproduct of the poppy plant, heroin belongs to a class of drugs called opioids, which are used by millions of Americans as prescription painkillers. Like other drugs in its class, heroin binds quickly and easily with opioid receptors that occur naturally in the human brain. It offers a burst of initial euphoria before making users feel blissfully calm and relaxed. Heroin delivers potent relief from emotional and physical pain.
One unique aspect of opioid drugs is that they can all be used interchangeably. So someone dependent on painkillers like OxyContin or fentanyl can smoke, snort, or inject heroin as a way to relieve their cravings. Because heroin is less costly than prescription drugs, many opioid painkiller addicts are turning to heroin as a cheaper alternative, and this is driving the recent upsurge in its use.