In Nigeria, thousands of young people are addicted to codeine cough syrup – a medicine that’s become a street drug.
But who makes this syrup? And who sells it to Nigeria’s students?
The BBC has gone undercover to investigate.
This is the first report from BBC Africa’s new investigations unit, Africa Eye.
bet9ja payment methods - how can I fund my account?
banker of the day - FREE banker tips from experts
banker of the day - FREE banker tips from experts