The Japanese Pharmacopoeia is the pharmaceutical standard that the Japanese Minister of Health, Labour and Welfare (MHLW) establishes to regulate the properties and quality of drugs.

As with other pharmacopoeias, the document is revised periodically. The 18th edition (JP18) came into effect on June 7, 2021. The text is originally prepared in Japanese and translated to English after the publication of the Japanese version. This usually is done within one year. According to the publication schedule, Supplement I to JP18 is to be published in December 2022 and Supplement II in 2024. It is planned that the 19th edition will be published in 2026.

Content of JP18 English Version

• General Notice - General Tests, Processes and Apparatus
• Official Monographs (A to L)
• Official Monographs (M to Z)
• Crude Drugs and Related Drugs
• Infrared Reference Spectra
• Ultraviolet-visible Reference Spectra
• General Information