Definition, Meaning & Synonyms

side-effect

noun

/ˈsaɪd ɪˌfɛkt/

Definition

A side-effect is an unintended result or consequence that occurs alongside the intended effect of a treatment or action, particularly in medicine.

Examples

Some patients experience side-effects when taking certain medications, such as headaches or nausea.
While the medicine may help reduce symptoms, it is important to be aware of potential side-effects.
The side-effects of this treatment were minimal, allowing for a smooth recovery.

Meaning

In healthcare, side-effects usually refer to the additional effects of a drug that are not the primary intended effects. These can be positive or negative and vary from minor to serious.