1.   The same drug given intravenously prevents the postprandial increase in sigmoid segmenting pressure activity in patients with irritable bowel syndrome.

2.   Although they no longer need insulin to control their blood sugar, they now must take other drugs to prevent rejection of the transplants.

3.   And beta-blocker drugs prevent those associated with the neurohormonal stresses of merely arising in the morning.

4.   And she may need four or five other drugs to prevent imminent infections.

5.   And, for a still more unfortunate group, even the best drugs could not prevent seizures.

6.   But Dr. Autran and Fauci said it would take clinical trials to determine at what point patients could safely stop taking drugs to prevent the complicating infections.

7.   But neither drug prevents hot flashes.

8.   But it also affected many people who took immunosuppressant drugs to prevent rejection of transplanted organs.

9.   By accident, scientists found that such drugs might also prevent cancer.