These are different problems, and there's no sign of synergistic effects when they're combined.

However, dark brown urine can also be a sign of rare side effects (liver problems or anemia).

Call your doctor right away if you have any signs of side effects.

This is so you can be watched for any signs of serious side effects from the medicine.

After the boy showed no signs of side effects, Dr. Koprowski expanded the experiment to another 19 children.

The creatures for whom the poison had been intended showed no signs of ill effects.

There were no signs of lasting emotional, cognitive or physical effects.

These symptoms could be early signs of dangerous side effects.

Again there was no sign of acute toxicological effects.