When the effects from using cocaine turn out badly or when the used dose is lethal, it is called a cocaine overdose. The exact amount of cocaine that causes an overdose varies from person to person and depends on a variety of factors including physical condition and possible diseases. Obviously, heart problems or a blood vessel disorder in the brain increase the risk of a cocaine overdose. The combination of cocaine with other narcotics or alcohol can increase the risks as well. The potency of cocaine also varies because cocaine is often diluted or mixed with some cutting agent. Therefore, it is difficult to determine a standard for a too high dosage. Additionally, there are a lot of differences in toxic or deadly doses. Some users stay alive after using a few grams while others who are allergic to cocaine can die of a small dose.

 

The causes of a fatal cocaine overdose are: 

 

In medical literature, there is a difference between a fatal and a lethal dose. A fatal dose causes death in 100% of the cases. A lethal dose causes death in 50% of the cases. 

 

Some doctors estimate that 1.2 grams of cocaine, when used orally, and 750-800 milligrams, when used intravenously or by inhaling, is fatal. It is unknown how much cocaine is fatal when sniffed. 

 

The average lethal dose of intravenous use of cocaine is about 500 milligrams. That doesn't mean, however that a smaller dose is safe. An estimated lethal dose when sniffing cocaine is unknown. These doses are estimates. 

 

It is important to act rationally and fast when someone has a cocaine overdose. When the user is anxious or restless, try to calm him down. Bring him to a quiet place and never react to his delusions. It will only make him more restless. Try to talk about something else. If you notice heart or respiratory problems, contact a doctor.