contraindication

/ˌkɒntrəˌɪndɪˈkeɪʃn/ (bre, ipa) · /ˌkɑːntrəˌɪndɪˈkeɪʃn/ (ame, ipa) · /ˌkän-trə-ˌin-də-ˈkā-shən/ (ame, mw)

contraindication — noun

  • contraindicationsingular
  • contraindicationsplural

1. a medical reason why a particular drug, treatment, or medical procedure should n

1.名詞B2
釋義

a medical reason why a particular drug, treatment, or medical procedure should not be used on a patient, because it could be dangerous or cause harm.

例句

The doctor told Eli that his allergy was a contraindication for penicillin.

contraindication + for + [drug]

Fatima's medical records showed a clear contraindication to the recommended surgery.

contraindication + to + [procedure]

同義詞
  • warning

    less specific — a warning advises caution, while a contraindication directly advises against use

  • red flag

    informal, metaphorical — suggests a reason to stop and evaluate, not necessarily an absolute ban

反義詞
  • indication

    a medical reason FOR using a particular drug or treatment on a patient

文法句型

contraindication + to + noun phrase

contraindication + for + noun phrase

用法筆記

Often used with the prepositions 'for' (before a drug name) or 'to' (before a treatment or procedure). The subject of the sentence is usually the condition or factor that rules out the treatment — not the treatment itself.

常見錯誤

❌This medicine has a contraindication for pregnant women.
✅Pregnancy is a contraindication for this medicine.
💡The contraindication is the patient's condition, not a property of the drug itself.
❌Aspirin is a contraindication for children with fever.
✅Reye's syndrome risk is a contraindication for giving aspirin to children with fever.
💡A drug is not a contraindication; the condition or risk factor is.