Dear Healthcare Professional Letters - Emergent and Rapid Drug Safety Communications
Summary
PMDA maintains an index of Dear Healthcare Professional Letters (DHPCs) communicating drug safety information to medical institutions in Japan. The letters are categorized as Yellow Letters (emergent and important safety information requiring immediate communication) and Blue Letters (prompt but non-emergent safety information). The index lists nine DHPCs issued between August 2011 and June 2021, covering drugs including Verzenio (abemaciclib), Lamictal (lamotrigine), Xeplion (paliperidone), and others, each with associated case reports. Marketing authorization holders are required under Article 68-10 of the Act on Securing Quality, Efficacy and Safety of Products Including Pharmaceuticals and Medical Devices to take necessary measures including recall, suspension of sales, and information provision when drugs may cause public health hazards.
“The Yellow Letter provides emergent and important safety information about drugs.”
About this source
GovPing monitors Japan PMDA Safety (EN) for new healthcare & life sciences regulatory changes. Every update since tracking began is archived, classified, and available as free RSS or email alerts — 3 changes logged to date.
What changed
This PMDA page provides a consolidated index of historical Dear Healthcare Professional Letters (DHPCs) issued to healthcare institutions in Japan. The letters communicate post-market drug safety risks identified through adverse reaction reports. Marketing authorization holders are legally required under Article 68-10 to take measures including recall, suspension of sales, or information provision when their drugs may cause public health hazards. The page does not create new compliance obligations but catalogs existing safety communications.
Affected parties—including pharmaceutical companies holding marketing authorization in Japan and healthcare providers administering the named drugs—should use this index to review historical safety communications. Companies should ensure their pharmacovigilance systems have captured and distributed relevant DHPCs to affected prescribing departments. Healthcare institutions should verify their drug safety reference materials reflect the communications listed.
Archived snapshot
Apr 23, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
日本語ページはこちら To prevent health hazards associated with the use of drugs, it is important that post-marketing reports of adverse drug reactions be collected and reviewed in order to promptly provide feedback about necessary information to medical institutions.
Under Article 68-10, Paragraph 1 of the Act on Securing Quality, Efficacy and Safety of Products Including Pharmaceuticals and Medical Devices (Act No. 145 of 1960), when the marketing authorization holders of drugs learn that the use of drugs that they have marketed might cause the onset or spread of hazards to public health or hygiene, necessary measures shall be taken, including recall, suspension of sales, and information provision to prevent such hazards.
Based on the above provision, various types of safety information have been provided. Particularly important safety information which requires immediate communication is provided through the Dear Healthcare Professional Letters of Emergent Safety Communications (Yellow Letter) or Dear Healthcare Professional Letters of Rapid Safety Communications (Blue Letter). The Yellow Letter provides emergent and important safety information about drugs. The Blue Letter provides information that does not require emergent communications compared to the Yellow Letter but should be promptly provided to alert healthcare professionals.
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