idiosyncratic reactions

A form of idiosyncratic reaction — A reaction to a medication that is unusual and unpredictable, specific to a particular person. Unlike allergy, it can occur on first exposure to the medication; unlike a side effect, it affects only very few individuals.

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Meanings

noun
  1. pluralplural of idiosyncratic reaction
Cite this entry
APA

idiosyncratic reactions. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/idiosyncratic%20reactions

MLA

“idiosyncratic reactions.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/idiosyncratic%20reactions. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “idiosyncratic reactions,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/idiosyncratic%20reactions.

Source: idiosyncratic reactions on Wiktionary, CC BY-SA 4.0.