
Japan has strict rules regarding the importation of medicines. Travellers are advised to consult the Ministry of Health, Labour and Welfare's website for the latest information on bringing medication into the country. In general, travellers are permitted to bring a two-month supply of any permissible over-the-counter medication and an equivalent amount of vitamins. For prescription medication, travellers are allowed to bring up to a month's supply. However, it is important to note that some over-the-counter medicines commonly used in other countries are illegal in Japan, including certain sleeping pills. Travellers bringing prescription medication should carry a copy of their doctor's prescription as well as a letter stating the purpose of the drug. If travellers need to bring more than the approved quantity of medication, they must obtain an import certificate (Yunyu Kakunin-sho) prior to travelling and present it upon arrival in Japan.
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What You'll Learn

Japan's strict rules on importing medicines
Japan has strict rules regarding the importation of medicines, which are subject to control by the Pharmaceutical Affairs Law and the Customs Law. These laws are in place to prevent health hazards caused by defective products. The Japanese government makes decisions on which medications or prescription drugs can be brought into the country, and these decisions are final. Many common medications and over-the-counter drugs available in the United States are illegal in Japan. For example, opium, cannabis, and stimulant drugs such as amphetamines and methamphetamines are prohibited and illegal to bring into Japan, even with a foreign prescription or customs declaration form.
If you are bringing prescription medication to Japan, it is advisable to bring a copy of your doctor's prescription as well as a letter stating the purpose of the drug. Medication should be stored in its original bottle, and you should ensure that the medication is not prohibited in Japan. If you need to bring more than one month's supply of prescription medication, you will need to obtain a "Yunyu Kakunin-sho" (import certificate) prior to travelling and present it upon arrival in Japan. The application process for this certificate can take several weeks, and it is recommended to apply at least two weeks in advance.
If your prescription medication contains narcotics, such as morphine or codeine, you must seek advance permission from one of Japan's Regional Bureaus of Health and Welfare. This involves submitting an import application form and supporting documentation at least 14 days before travelling to Japan. It is important to note that overseas prescriptions are not honoured in Japan, and you may need to consult a local care provider if your prescription needs exceed the approved quantity.
For over-the-counter medications, travellers are permitted to bring a two-month supply without any special procedures. However, it is important to review Japan's Controlled Substances List to ensure compliance with the country's regulations. Japan has well-stocked pharmacies in most major metropolitan areas, and travellers can often find relief for minor health issues.
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Prescription requirements
Japan has strict rules concerning the importation of medicines. The Japanese government decides which medications can be imported and these decisions are subject to control under Japan's Pharmaceutical Affairs Law. Many common medications and over-the-counter drugs in the United States are illegal in Japan.
If you are travelling with prescription medication, you should bring a copy of your doctor's prescription as well as a letter stating the purpose of the drug. You are permitted to bring up to a month's supply of prescription medication without any special procedures. If you need to bring more than a month's supply, you will need to obtain a "Yunyu Kakunin-sho" (import certificate) prior to travelling and present it with the prescription to a customs officer upon arrival in Japan. Applications for the Yunyu Kakunin-sho should be submitted to the Regional Bureau of Health and Welfare closest to your airport of arrival in Japan.
If your prescription medication involves the use of narcotics (e.g. morphine, codeine, oxycodone, pethidine, hydrocodone), you must seek advance permission from one of Japan's eight Regional Bureaus of Health and Welfare. You will need to submit an import application form as well as supporting documentation at least 14 days before travelling to Japan.
It is important to note that some over-the-counter medicines commonly used in the United States are illegal in Japan, including some inhalers and some allergy and sinus medications. In particular, products that contain stimulants (including medicines that contain pseudoephedrine, such as Actifed, Sudafed, and Vicks inhalers) or codeine are prohibited. Opium, cannabis, and stimulant drugs (amphetamines, methamphetamines) are also strictly prohibited and illegal to bring into Japan. You risk arrest and imprisonment if you bring these drugs into Japan, even if you have a foreign prescription or a customs declaration form.
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Prohibited drugs
Japan has strict rules concerning the importation of medicines. The Japanese government decides which medications can be imported, and this information is subject to change. It is important to check the latest information before travelling to Japan. The Japanese Ministry of Health, Labour and Welfare provides comprehensive information on prohibited medications and ingredients.
Some medications that are available over the counter in Western countries are illegal in Japan. For example, some common over-the-counter sinus and allergy medications, such as Sudafed, Actifed, and Vicks inhalers, which contain pseudoephedrine, are prohibited. Opium, cannabis, and stimulant drugs, including Adderall, Dexedrine, and other medications for the treatment of ADD/ADHD, are also illegal to bring into Japan. Narcotics, such as morphine, codeine, oxycodone, and hydrocodone, require advance permission from the Regional Bureaus of Health and Welfare.
Travellers are permitted to bring a two-month supply of any permissible over-the-counter medication and an equivalent amount of vitamins. For prescription medication, travellers are generally allowed to bring up to a one-month supply. However, it is important to carry a copy of the doctor's prescription and a letter stating the purpose of the drug. If travellers need to bring more than the approved quantity, they must obtain an import certificate ("Yunyu Kakunin-sho") before travelling and present it upon arrival in Japan.
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Import certificates
Japan has strict rules concerning the importation of goods and medications. Import certificates are required for certain goods and medications. Here are the key details regarding import certificates for Japan:
- Goods and Product Labelling: Japan has specific requirements for importing various goods. Certain regulated products, such as wood packing material (WPM), must comply with the International Standards for Phytosanitary Measures No. 15 (ISPM 15). Additionally, labels must not be false or misleading, and additional packaging and labelling requirements may apply to specific products. It is recommended to verify with Japanese agents or importers to understand the exact requirements for the goods being imported.
- Certificate of Origin: A Certificate of Origin is required for certain types of imports, particularly those seeking duty concessions or preferential tariff treatment. This certificate should be issued by the competent authority of the exporting country. Two copies are generally required, and the exact specifications may vary depending on the product and country of origin.
- Medications and Medical Devices: Travellers bringing prescription medication to Japan, including medication that is not restricted, should consider carrying a copy of their doctor's prescription and a letter explaining the purpose of the drug. If travellers need to bring more than the approved quantity of medication (more than a month's supply for prescription medication or more than a two-month supply for over-the-counter medication), they must obtain a "Yunyu Kakunin-sho" (輸入確認書), also known as an import certificate, before travelling. This certificate should be presented to a customs officer upon arrival in Japan. Applications for the Yunyu Kakunin-sho should be submitted to the Regional Bureau of Health and Welfare closest to the arrival airport in Japan.
- Prohibited Medications: It is important to note that certain medications commonly available in other countries are prohibited in Japan, including opium, cannabis, stimulant drugs (amphetamines, methamphetamines), and certain medications for ADD/ADHD (e.g., Adderall, Dexedrine). Narcotics, such as morphine and oxycodone, require advance permission from one of Japan's Regional Bureaus of Health and Welfare, along with an import application form and supporting documentation submitted at least 14 days before travelling.
- Timing and Contact Information: Obtaining the necessary import certificates and approvals from the Japanese government can take several weeks. It is recommended to apply for the Yunyu Kakunin-sho at least two weeks in advance of the travel date. For specific inquiries and the latest information, travellers can contact Japan's Ministry of Health, Labour, and Welfare (MHLW) via their website or email ([email protected]).
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Where to get information
If you are planning to bring sleeping pills to Japan, it is important to first find out whether you are allowed to. The information below will direct you to the relevant sources to consult.
The decision on what medications may be imported legally into Japan is made solely by the Japanese government and is subject to control under Japan's Pharmaceutical Affairs Law and Customs Law. The Japanese government's Ministry of Health, Labour and Welfare (MHLW) is the best source of information on what medications can and cannot be brought into the country. The MHLW website has an FAQ section and can be contacted via email at [email protected]. The website also contains information on how to obtain a "Yunyu Kakunin-sho" (import certificate) for those who need to bring more than the approved quantity of medication into Japan.
The U.S. Embassy and Consulates in Japan do not maintain a comprehensive list of prohibited medications or ingredients, but their websites also advise travellers to consult the MHLW for the latest information.
If you are travelling to Japan from the United States, you may also find it useful to consult the websites of the Embassy of Japan in the United States of America and the American Embassy and Consulates in Japan. These websites provide general information, guidelines, and details regarding the application for the Yunyu Kakunin-sho, including application forms. They also provide contact information for the Kanto-Shin'etsu and Kinki Regional Bureaus of Health and Welfare, which can be contacted for inquiries about specific prescription medications.
It is important to note that decisions on which medications can be brought into Japan are subject to change, so it is advisable to consult these sources well in advance of your travel date to ensure you have the most up-to-date information.
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Frequently asked questions
It depends on the type and amount of the medication, as well as the ingredients. You should consult the Ministry of Health, Labour and Welfare’s website before travelling to Japan. If you need to bring more than the approved quantity, you must obtain a Yunyu Kakunin-sho (import certificate) before travelling and present it to a customs officer upon arrival.
You should apply for the Yunyu Kakunin-sho at least two weeks in advance of your travel date to Japan. You can find the application forms on the website of the Ministry of Health, Labour and Welfare. You must submit your application to the Regional Bureau of Health and Welfare closest to your airport of arrival in Japan.
If you bring a prohibited medication to Japan, you risk arrest and imprisonment, even if you have a valid foreign prescription.











































