Japan’s Ministry of Well being, Labour and Welfare (MHLW) has begun accepting public feedback on a proposal to categorise cannabinol (CBN) as a delegated drug, step one towards treating the hemp by-product as a regulated narcotic.
If finalized, the rule may prohibit the sale, promoting, distribution, and import of CBN merchandise nationwide, with ripple results probably reaching CBD and different hemp-derived cannabinoids. The regulation would have an effect on solely Japanese CBN imports; the nation prohibits home harvesting of hemp flowers and manufacturing of cannabinoids.
The general public remark interval, which runs by Nov. 27, adopted a late October assembly of the Pharmaceutical Affairs Council’s Designated Medicine Subcommittee.
‘Keep away from buy and use’
The ministry says CBN merchandise current “a excessive probability of psychotoxicity,” and is already urging shoppers to “keep away from their buy and use.”
“As a result of it may be tough to distinguish CBN from merchandise containing different cannabinoids, akin to CBD, the Ministry of Well being, Labor and Welfare is asking on each shoppers and companies to concentrate to security and take acceptable motion,” MHLW mentioned in asserting the session.
If finalized, the order would prohibit gross sales, distribution, promoting and import of CBN underneath the Prescribed drugs and Medical Units Act, with promulgation focused for mid-December and impact 10 days later.
Why now
CBN’s profile rose shortly in Japan over the previous two years as retailers promoted it as a sleep-support compound with “stronger-felt” results than CBD. Excessive-dose cookies, gummies and different ingestibles shortly unfold throughout e-commerce and boutique wellness shops.
A number of Japanese-language studies this 12 months referenced an incident involving a college pupil who consumed a cookie marketed as containing CBN and subsequently jumped from a second-story window (remaining unhurt); nationwide press and broadcast shops amplified broader considerations about “cannabis-like” edibles and sudden sickness amongst shoppers. Whereas particulars stay underneath investigation, the protection contributed to a sharper coverage posture.
Commerce associations have tried to get forward of regulators. The Japan Cannabinoid Federation (JCF) and allied our bodies issued place papers and voluntary steering, and the Nationwide Hashish Commerce & Business Council (Zenmakyo) rolled out labeling and ingestion suggestions this 12 months that decision for restraint on dose and advertising. These efforts acknowledge studies of emergency transports suspected from overconsumption and flag ultra-high-dose edibles—but they haven’t slowed the well being ministry from performing.
CBN’s rise, CBD’s dilemma
CBN’s business pitch in Japan has leaned on “really feel it” performance—significantly for sleep—making it a handy improve narrative from CBD. That framing, mixed with the issue of analytically distinguishing CBN from CBD in finish merchandise, is central to MHLW’s present warning to companies and shoppers, the company has mentioned.
If the rule is finalized, CBN could be positioned in the identical class as managed medicine in Japan. Industrial gross sales — together with dietary supplements, gummies and wellness merchandise — could be prohibited. Solely pharmaceutical firms may use CBN, and provided that they apply for and obtain a particular medical-use approval from the ministry. MHLW’s timeline envisions promulgation in mid-December, leaving a slender runway for compliance after feedback shut Nov. 27.
Shift to ingredient guidelines
The transfer to regulate CBN as Japanese officers are transitioning from “plant-part” guidelines to ingredient-based controls pegged to measurable cannabinoids—particularly delta-9 THC. Traditionally, Japan has allowed solely stalks and seeds of hemp in merchandise; flowers and leaves stay prohibited.
That framework remains to be the sensible baseline for CBD, which have to be derived from these non-flower components. Customs and regulatory steering repeat these constraints. However producers have labored across the limitations for years by merely labeling their merchandise as having come from hemp stalks regardless that that may be a sensible impossibility.
Japan additionally enforces a number of the strictest THC limits on this planet. For CBD oils and powders, the brink is 10 mg/kg (0.001% or 10 ppm), with even tighter limits for drinks and a few meals—orders of magnitude under the 0.3% norms used within the U.S. and Europe. HempToday reporting in 2024 detailed how these caps compelled distributors to hunt for ultra-low-THC inputs and re-engineer provide chains.
What’s subsequent
Stakeholder submissions will check whether or not MHLW entertains managed-risk choices akin to dose ceilings and class restrictions, or proceeds with a blanket CBN designation. Both method, the ministry’s language—and the accelerated timetable—sign a crackdown that would cascade past CBN to different non-intoxicating hemp cannabinoids if differentiation and enforcement stay problematic.




