Deaths from medicines
- Topic
A medicine can kill through intentional overdose, error, interaction or accident; proving it takes the scene, the history, the autopsy and the laboratory.
What it is
Medicines are the most frequent substance group in the poisonings reported in Colombia: in the 2024 report of the Instituto Nacional de Salud, most of those poisonings were intentional and suicidal, and medicines caused 17.8% of the reported poisoning deaths. In forensic medicine the question is not only "which drug was present" but whether its amount and combination explain death in that person, given their tolerance, their diseases and their other drugs. The autopsy usually shows non-specific findings, so the weight falls on the scene, the history and careful interpretation of the toxicology.
Key facts
- Drugs often involved in the poisonings reported in Colombia in 2024: paracetamol (acetaminophen), quetiapine and clonazepam (INS).
- "Therapeutic" and "toxic" reference figures were measured in the living; in the dead body they are not equivalent.
- Admission samples and the time of the last dose are worth more than an isolated postmortem figure.
- Chronic overdose or accumulation (for example, from kidney failure) can be as lethal as a single ingestion.
Next step: what to do and document
- In a death with suspected medicines, describe and hand over the containers, prescriptions and tablets found, with chain of custody.
- Record in the chart which drugs the person was taking, which were given during care, and at what time.
- If the death may be due to an administration error during care, inform the authorities: it is not a natural death and must go to a medico-legal autopsy.
- Notify the poisoning to Sivigila (event 365) and record the mental health care if there was suicidal intent.
- On the certificate, name the drugs involved and the combination, not just "cardiorespiratory arrest".
Legal framework in Colombia
- Poisoning deaths are notified to Sivigila as event 365; according to the 2024 INS report, people who die before reaching medical care are not captured by notification and go straight to the Instituto Nacional de Medicina Legal.
- A possible error in care is analysed with the medical criminal liability page; the doctor describes facts and does not classify the offence.
Test yourself
Think of the answer, then tap the question to see it.
Why is a postmortem concentration not enough to diagnose a medicine overdose?
Because it depends on tolerance, disease, interactions, time since death and postmortem redistribution; it is read alongside the scene, the history and the autopsy.
Which scene findings point to a death from medicines?
Empty blister packs and bottles, prescriptions, a count of missing tablets, notes or messages, and the list of drugs the person was taking.
What should be written on the certificate when several drugs contributed to death?
Acute intoxication by the combined effects of the named drugs, instead of a vague mechanism such as "cardiorespiratory arrest".
Connections
Educational content on forensic and legal medicine; not legal advice and no substitute for the technical guides of Colombia's National Institute of Legal Medicine and Forensic Sciences. Laws change: each page links the official text and says when it was last checked. For a real case, follow the guide in force and ask the competent authority.
Sources: Informe de Evento 2024 Intoxicaciones Agudas por Sustancias Químicas (Instituto Nacional de Salud, 2025); A Forensic Diagnostic Algorithm for Drug-Related Deaths: A Case Series (Toxics, 2022); Postmortem redistribution of drugs: a literature review (Forensic Science, Medicine and Pathology, 2024); Recommendations for the investigation, diagnosis, and certification of deaths related to opioid drugs (NAME and ACMT position paper) (Journal of Medical Toxicology, 2014).
Spotted a mistake?We are always improving for the community. Tell us what is wrong and our team will review it.Report a mistake
Representative model, for educational purposes only.