Japan Medical Cannabis Market, by Route of Administration

Growth Outlook

• The Japan Medical Cannabis Market, by Route of Administration market is on a steady long-term growth path. Segment value stands at roughly USD 2 Mn in 2026 and is projected to reach USD 3 Mn by 2027 — a gain of about 29% over the forecast period, translating to a CAGR in the double digits.
• What the regional split looks like (2026): Inhalation leads, holding roughly 59% of segment value — the single largest regional share. Oral is the second-largest contributor. Topical make up the remainder, in descending order.
• By 2027, Inhalation alone is expected to reach USD 2 Mn, with Oral at USD 1 Mn.

Market Dynamics

Japan, known for its advanced healthcare system and strict drug laws, has not been a major player in the global cannabis market. However, with the growing trend of legalizing medical cannabis in many countries, Japan is also seeing a demand for this alternative form of medication.

The main route of administration for medical cannabis in Japan is through inhalation, also known as smoking or vaping. This method involves heating the cannabis flower or oil, which releases the active compounds, and inhaling the vapor. It is the most commonly used method for consuming medical cannabis, mainly because it offers the quickest onset of effects.

Another route of administration for medical cannabis is through topical application, where the cannabis-infused products are directly applied to the skin. This method is often used for localized pain relief, inflammation, and skin conditions. It is an attractive option for those who do not want to ingest cannabis or are not comfortable with inhalation.

Oral administration is another popular route of administration for medical cannabis in Japan. It involves consuming cannabis-infused products such as oils, tinctures, capsules, or edibles. This method is preferred by patients who do not like smoking or have respiratory issues. It also provides a longer duration of effects compared to inhalation.

Sublingual administration is a lesser-known route of administration for medical cannabis in Japan. It involves placing cannabis-infused products under the tongue, where they are absorbed by the mucous membranes and enter the bloodstream directly. This method is similar to oral administration, but it bypasses the digestive system, resulting in faster onset of effects.

Intravenous (IV) administration is also gaining popularity in Japan, especially for patients who need immediate and precise delivery of medical cannabis. It involves injecting a liquid cannabis extract directly into the bloodstream. IV administration is considered the most potent method of delivering medical cannabis, as it has the highest bioavailability.

Lastly, suppositories are another route of administration for medical cannabis in Japan. This method involves inserting a cannabis-infused product into the rectum, where it is absorbed by the rectal lining. Suppositories are often used for patients who cannot ingest or inhale cannabis due to certain medical conditions.

In conclusion, the demand for medical cannabis in Japan is growing, and the available routes of administration offer a variety of options for patients to choose from. The choice of route depends on various factors such as the patient's medical condition, personal preference, and desired onset and duration of effects. With ongoing research and advancements in the medical cannabis industry, we can expect to see new and improved methods of administering cannabis in the future.