Adverse Reaction不良反应
An adverse reaction is a harmful or unintended response associated with the use of a medicinal product or medical treatment, where a causal relationship to the product is at least suspected. In life science translation, the term appears in safety reports, labeling, clinical study documents, and pharmacovigilance content, where it must be clearly distinguished from adverse events that are not attributed to the product and from expected side effects.
Angel Translation editorial reference · Confirm the rendering against your source and approved project terminology.
Check source meaning → confirm the preferred term → record approved variants and references.
Where this term appears
In translation, adverse reaction appears in safety narratives, clinical study reports, labeling, and pharmacovigilance submissions. It is usually handled during case processing, aggregate report localization, and patient-facing label updates. The wording must preserve distinctions between serious and non-serious reactions, expectedness, and the stated causal relationship, because these differences affect how safety information is interpreted by regulators and clinicians.
Translation checks
A common pitfall is collapsing adverse reaction, adverse event, and side effect into a single translation, which obscures whether a causal relationship is suspected. Another error is incorrectly grading severity or seriousness, distorting safety narratives and label warnings. Such shifts can affect regulatory assessment, harmonization of safety data, and patient risk communication.
Keep the term aligned across your files
Check intended use, warnings, document versions and approved terminology with the project team. Translation supports documentation; it does not establish product approval or regulatory acceptance.
Provide approved terms and previous translations with the source files. Agree how variants, ambiguous wording and revisions will be reviewed. Terminology maintenance and any termbase handback are confirmed in the project scope. See the 8-step AI + expert workflow.
Related document experience
NIPRO Medical (Hefei)
Chinese → EnglishMedical-device registration files and technical specifications, in volume.
Read the published project →
Walvax Biotechnology
Chinese → EnglishVaccine-production process documentation, SOPs, quality-control standards and microbiology-testing procedures.
Read the published project →Published scope shows related industry experience; it does not confirm that this specific term was used or reviewed in the project.
Working on life science documentation?
Include the source and target languages, file types, intended use, deadline and any approved termbase. Agree handling before sending sensitive files. Acknowledged in 4 hours, quoted in 24.
Prepare an inquiry email →Life Science solutions →File handling →A glossary entry is not an official standard or evidence of regulatory acceptance. Confirm current requirements for your project separately.