Some adverse effects happen only at the beginning or a change of a treatment.

So perhaps there are times when my words have an adverse effect.

I'm not sure that these adverse effects are the result of the treatment.

The patient is having an adverse effect to a specific drug.

There were no adverse effects in any of these studies.

We've used this for many years without any adverse effects.

Clearly computer games and the Internet have had an adverse effect.

There would be a number of adverse effects if we did so.

But in Europe too, the adverse effects are already being felt.

The adverse effect is far worse on the boys than the girls.