also side effect
( side-effects)
1.
The side-effects of a drug are the effects, usually bad ones, that the drug has on you in addition to its function of curing illness or pain.
The treatment has a whole host of extremely unpleasant side-effects including weight gain, acne, skin rashes and headaches...
Most patients suffer no side-effects.
N-COUNT : usu pl
2.
A side-effect of a situation is something unplanned and usually unpleasant that happens in addition to the main effects of that situation.
One side effect of modern life is stress...
N-COUNT : usu N of n / -ing