Economic growth and increasingly interlinked markets have allowed both methamphetamine and the chemicals used in its production to flow across the Pacific region.
West Africa's new role as a transit hub for drugs headed to Europe means illegal narcotics are more readily available on the continent, a top UN official says.
At least 141 people were hanged for drug offenses in Iran in the first two months of 2015 alone, human rights campaigners say. Now it might sign a multi-million dollar deal with the UN.
Ketamine is mostly used in veterinary medicine in the industrialized world, but the drug is commonly dispensed in poor and rural nations to alleviate pain and prepare patients for surgery.