What are the possible side effects of heroin?

Heroin is an opioid that primarily affects the central nervous system. Its use can lead to a variety of side effects, among which euphoria and drowsiness are prominent. When heroin is consumed, it rapidly converts to morphine in the brain, binding to opioid receptors, which results in a profound sense of pleasure or euphoria. This state of euphoria is often accompanied by significant drowsiness, as the drug depresses the central nervous system.

The drowsiness that follows heroin use can vary in intensity, making it a significant concern for the user's safety and ability to function. The combination of these effects can lead to impaired judgments and coordination, which is why heroin use poses serious risks.

While other side effects, such as nausea, can occur, the distinct pairing of euphoria and drowsiness characterizes the initial effects of heroin and is a critical insight into its impact on users.