side effect

• Вторичное, обычно нежелательное последствие приема лекарства, медицинского лечения или действия, особенно в медицинском или техническом контексте.

A secondary, typically undesirable consequence of a drug, medical treatment, or action, especially in medical or technical contexts.

1. Unintended medical reactionB2formal

   A secondary, typically undesirable effect of a drug or medical treatment.

   Побочный эффект

   • The medication may cause drowsiness as a side effect.
   • Nausea is a common side effect of chemotherapy.
   • Always read the label to check for possible side effects.

2. Unintended consequenceB2formal

   A secondary or indirect result of an action or situation, often negative.

   Побочный эффект

   • One side effect of the new policy was increased paperwork.
   • The side effect of the economic boom was higher inflation.
   • A side effect of the construction was constant noise pollution.