How If Overdose

Many street drugs have no therapeutic benefits. Any use of these drugs is a form of drug abuse.
Legitimate medications can be abused by people who take more than the recommended dose or who intentionally take them with alcohol or other drugs.
Drug interactions may also produce adverse effects. Therefore, it is important to let your doctor know about all the drugs you are taking, including vitamins and other over-the-counter medications.

Heroin Dangers and Overdose

Overdose

The biggest risk is death from overdose. It's impossible to judge the purity of street heroin. Many accidental overdoses have occurred when a batch of particularly pure heroin is released onto the streets, overwhelming the built-up tolerances of regular users.

Smoking or snorting, rather than injecting, reduces the chance of overdosing but does not eliminate it.