But it also blocks the effects of nicotine from tobacco.

Learn if new therapies can block the effects of this hormone.

But there is no drug that blocks the effects of crack.

They block the effects of the sympathetic nervous system on the heart.

"The doctor on the original Enterprise came up with something to block the effects, didn't he."

"I hope we have as much success in blocking the effects of the wave."

Captain, if we can't find a way to block the effects, we'll be destroyed.

This drug treatment blocks the effects of the growth factor.

It blocks the effects of the chemical histamine in your body.

They work by blocking the effects of the immune system, protecting the body from itself.