Cocaine + alcohol form cocaethylene in the body, a metabolite with:
- A longer duration of action than cocaine (~2× the half-life)
- Higher cardiac toxicity (heart attacks in young people are more common under cocaethylene than under cocaine alone)
- Enhanced euphoric effect — which encourages higher amounts of use
Cocaethylene is the suspected reason why cocaine + alcohol is one of the most common substance-related causes of death in Western countries.
Clinically relevant complications:
- Acute myocardial infarction
- Aortic dissection
- Arrhythmias
- Cerebral hemorrhage
- Liver strain
With repeated use of this combination, a cardiac work-up later on (days afterwards) is also part of the picture — symptoms like chest pain, shortness of breath or syncope should not be dismissed as a “hangover”.