BOISE, Idaho (AP) — Three versions of a synthetic hallucinogenic drug appear bound for Idaho's list of illegal substances after the federal Drug Enforcement Administration placed them on the same list as marijuana, heroin and LSD.

The federal drug agency made the announcement on Tuesday for drugs known by their street names that include 25i, Smiles, and N-Bomb. For substances declared by the federal government as among the most dangerous drugs, Idaho law requires the Idaho State Board of Pharmacy to control the substance after 30 days — unless state regulators find reason to object.

Idaho's Office of Drug Policy describes these drugs as highly toxic and says several deaths have been attributed to their use. They're usually taken by mouth via saturated paper tabs, but they may be smoked, snorted or injected, too.

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