The UN Office on Drugs and Crime (UNODC) has warned in its World Drug Report 2026 that the unprecedented collapse in opium production in Afghanistan, alongside the spread of synthetic opioids, is reshaping the global drug market.
According to the report, published on Friday, Afghanistan, which produced around 80% of the world’s illicit opium until 2022, has seen opium production fall by 95% following the Taliban’s ban on poppy cultivation.
The area under poppy cultivation declined from around 232,000 hectares in 2022 to 10,200 hectares in 2025, while opium production fell from 6,200 tons to about 296 tons.
However, the UN says existing opium stockpiles in Afghanistan are expected to last until the end of 2026.
Heroin No Longer Dominates the Market
The UN says heroin’s century-long dominance of the global opioid market is now being challenged.
According to the report, two simultaneous developments are transforming the global opioid trade: the sharp decline in Afghan opium production and the rapid expansion of powerful synthetic opioids such as fentanyl and nitazenes.
It says these trends together are driving a fundamental shift in global opioid markets.
Traffickers Seek Alternatives to Heroin
The UN warns that reduced heroin supplies are pushing traffickers to seek new alternatives.
The report says actual or perceived disruptions in heroin supply could encourage traffickers to turn to synthetic opioids, including fentanyl, nitazenes and other emerging substances.
According to the UN, these drugs are cheaper, more potent and easier to manufacture than heroin because they do not require poppy cultivation.
The organisation says this trend could shift the global opioid market from plant-based narcotics to synthetic drugs.
Afghan Stockpiles Remain Available
Despite the collapse in production, the UN says Afghanistan’s remaining opium stockpiles have not yet been exhausted.
Its estimates suggest these reserves are likely to last until the end of 2026.
The report adds that continuing seizures of heroin and opium in Afghanistan and neighbouring countries are largely linked to these remaining stockpiles.
However, the volume of seizures has declined compared with the period before the Taliban’s cultivation ban, indicating tighter global supplies.
Heroin Prices Have Risen
The UN says lower heroin supplies have driven prices higher in consumer markets.
Across 12 major destination markets for Afghan heroin, the price of one gram of pure heroin nearly doubled during 2023 and 2024, rising from around $250 to almost $500.
At the same time, heroin purity has declined, reflecting growing pressure on supply.
No Country Has Replaced Afghanistan
The report says no other country has compensated for Afghanistan’s collapse in opium production.
Although Myanmar became the world’s largest opium producer in 2023, with production exceeding 1,000 tons, the UN says this increase is linked to the country’s internal conflict rather than Afghanistan’s reduced output.
Likewise, no significant rise in production has been recorded in Mexico or Laos.
Signs of Regional Relocation
The UN has identified early indications that some poppy cultivation may be shifting to countries neighbouring Afghanistan.
According to the report, the area of destroyed poppy fields in India and Pakistan increased from 5,868 hectares in 2022 to 13,200 hectares in 2023.
However, the organisation says that even if production rises elsewhere, replacing Afghanistan’s role quickly will be difficult.
Synthetic Opioids Continue to Expand
The report shows that after two years of decline, the number of new synthetic opioids detected in global markets increased again.
Cases recorded in 2023 and 2024 rose across most regions, with particularly sharp increases in Europe, Oceania and Africa.
In North America, where fentanyl has largely replaced heroin, the number of newly identified synthetic opioids rose by around 10% in 2024.
The increase exceeded 80% in Europe and reached about 150% in Oceania.
Global Drug Use Continues to Rise
The World Drug Report 2026 says global drug use continues to increase. Around 331 million people used drugs in 2024, a rise of 34% compared with a decade earlier.
Cannabis remains the world’s most widely used drug, with 256 million users. Around 63 million people used opioids, 32 million used amphetamines and 25 million used cocaine.
The UN says global cocaine production has reached a record high of more than 4,000 tons, while the market for synthetic drugs is expanding rapidly.
In 2024, the number of newly identified psychoactive substances worldwide reached 755, the highest level ever recorded.
According to the report, around 63 million people worldwide are living with drug use disorders, yet only one in 12 has access to treatment.
The UN concludes that the collapse in Afghanistan’s opium production, the rise of synthetic drugs, record cocaine production and shifting trafficking routes are collectively reshaping the structure of the global drug market.
