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副反応
fukuhan'nō
side effect
この薬には副反応が少ないです。
This medicine has few side effects.
Medicine
technical
An unintended or secondary effect of a medication or treatment, often undesirable.
副反応として頭痛や吐き気が起こることがあります。
Headaches and nausea may occur as side effects.
In medical contexts, this term refers specifically to adverse reactions to drugs or treatments.
Related Phrases
Pro Tip
Medical Context
This term is most commonly used in medical discussions about drug treatments.
Gold Rule
Precision in Medicine
In medical contexts, distinguish between '副反応' (side effects) and '主作用' (primary effects).
Word Origin
From 副 (fuku, meaning 'secondary') + 反応 (han'nō, meaning 'reaction').
Usage Notes
In everyday Japanese, this term is often used in medical contexts but can also refer to unintended consequences in general.
Word Breakdown
副
secondary
prefix反応
reaction
root和英辞典