Officials at the burning, an annual occurrence marking the UN International Day Against Drug Abuse and Illicit Trafficking, accused the West of failing to back it in interdicting drug traffic that they said was driven by European addicts.
Iran lies on a major trafficking route between Afghanistan and Europe, as well as Persian Gulf states where the confiscation of large amounts of narcotics is common.
Radan said more than 3,700 Iranian troops have been killed and 12,000 others injured in the fight against drug trafficking in the past three decades.
"If it was not Iran's will to fight drugs, then by today European countries definitely must have rounded up their young drug addicts in their streets," he said.
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"Iran is at the front line of fighting narcotics, but countries involved not only don't provide assistance to us, they refuse to provide the basic equipment such as sniffer dogs and electronic equipment."
European countries and allies say they are active in the region, including in Iran's neighbours, trying to battle the opium trade and the flow of other drugs Iranian authorities have taken several steps to stop trafficking, including the building of dikes and trenches along large portions of its roughly 560-mile (900-kilometre) border with Afghanistan, the world's largest producer of opium, the raw material for heroin.