As fans prepare to stay up late for the World Cup, a doctor is highlighting the dangers of mixing cocaine with alcohol, a combination that can lead to a significantly increased risk of sudden death. Cocaine is the second most used drug in the UK after cannabis, with around 1 in 50 adults having used it in the past year.
The drug is often used to prolong nights out, allowing users to continue drinking and remain alert when they would otherwise be affected by tiredness and alcohol. However, the combination with alcohol creates a unique and dangerous substance called cocaethylene. This compound is produced by the liver when cocaine and alcohol are present in the body simultaneously and is considerably more harmful than either parent drug.
Cocaethylene lingers in the system for a longer duration than cocaine, placing extended strain on the body, particularly the heart. Research indicates that the risk of sudden death is 18 to 25 times higher when cocaethylene is present compared to cocaine use alone. Cocaine itself is known to constrict arteries and increase heart rate, and cocaethylene amplifies these effects.
This dangerous mixture can affect not only long-term users but also seemingly healthy young individuals who engage in excessive consumption during a single event. The perception of being able to drink more when using cocaine masks the body's natural signals to stop, leading to potentially fatal levels of alcohol consumption while the heart is under extreme duress.
Beyond the physiological risks, the combination of cocaine and alcohol has also been linked to increased aggression, a factor that can exacerbate issues like domestic abuse, which has been observed to rise around major football tournaments. Football matches themselves do not cause this increase, but the heightened emotions, alcohol, and stimulant use can contribute to a volatile environment.
Doctors are also concerned by a paradox: while official surveys suggest stable or even declining cocaine use, particularly among young people, deaths involving the drug have been steadily increasing. In 2024, deaths involving cocaine reached 1,279, a rise of over 14% in a single year. This increase is attributed to the changing nature of street cocaine, which has become significantly more potent. Purity levels have risen dramatically over the past decade, meaning that a dose that once had a moderate effect can now be far more potent and unpredictable.
Most fatal cocaine-related incidents involve multiple substances, with alcohol frequently present in the mix. Medical professionals who have treated cocaine users often recall those who were convinced they had their use under control, only for the situation to change rapidly. Cocaine's ability to foster a false sense of control can be devastating.
While enjoying events like World Cup matches with friends and a few drinks is common, experts urge caution against using cocaine to extend these celebrations. The perceived benefit of a few extra hours of alertness comes at a significant risk to health, with the most severe consequence being a failure to survive the night.