side effect Synonyms

fallout by-product unwanted effects negative impact negative consequences adverse consequences secondary response final outcome negative effect side issue unexpected result secondary effect adverse effects unwanted effect ill effects spillover effects secondary effects adverse reactions undesirable effect undesirable effects adverse event spinoff carryover after-effect offshoot impact effect disease corollary consequence concomitant aftertaste outcome outgrowth reaction adverse impact adverse effect sidebar byproduct aftereffect upshot result repercussion aftermath