adverse effect

(AD-vers eh-FEKT)

An unexpected medical problem that happens during treatment with a drug or other therapy. Adverse effects do not have to be caused by the drug or therapy, and they may be mild, moderate, or severe. Also called adverse event.

Pronunciation of dictionary term "adverse effect"

Pronunciation of dictionary term "efecto adverso"

Problema médico inesperado que sucede durante el tratamiento con un medicamento u otra terapia. La causa de los efectos adversos no es necesariamente el medicamento o el tratamiento; ellos pueden ser leves, moderados o graves. También se llama fenómeno adverso.