Coming soon to a lab near you? Genetically modified cannabis

Medical marijuana grown the old-fashioned way in a Canadian facility.Credit: Richard Lautens/Getty

Legal hurdles to exploring marijuana’s medicinal properties might soon fall in the wake of the US Food and Drug Administration’s (FDA) first approval of a cannabis-derived drug.

On 25 June, the FDA announced its approval of Epidiolex — a treatment for epileptic seizures that is based on a cannabis compound called cannabidiol (CBD). The US Drug Enforcement Administration (DEA) has until 24 September to re-classify Epidiolex so that it’s legal for doctors across the country to prescribe it. Many researchers hope that the agency will re-classify CBD itself, instead of just Epidiolex, so that they can more easily study this non-psychedelic component of marijuana.

Now that the FDA has approved Epidiolex, “we have a clear recognition that this plant has more potential than people credited it for, and that has reverberations that are scientific as

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