A side effect is the extra unwanted thing a medicine does besides helping. Common side effects, a nasty side effect, no side effects at all.
Every drug has some, and the decision to take one is always a trade between the effect wanted and the rest. Outside medicine the phrase means any unintended consequence, usually a bad one.
1phraseside effectThe extra unwanted thing a medicine does besides helping.
“Drowsiness is the side effect people notice first.”
side effect is an effect.
Also accepted in games: side effects
Practised in Body & Health, Mental Health & Wellbeing