Severe reactions can cause difficulty breathing, coma, and death.

Even a slight overdose can cause coma or death.

The oil could cause fits, coma and suppression of breathing if swallowed, she added.

In greater doses it can cause severe digestive upset, breathing difficulties, coma or even death.

At high levels it can cause convulsions, coma, and even death.

High levels can cause mental retardation, coma, convulsions and death.

A stroke could cause seizure and coma, but only rarely.

Very severe exposure can cause coma, convulsions and death.

At high doses it can cause low blood pressure, shock, coma, and an eye disease called glaucoma.

The test picked up his propionic acidemia, which can cause coma, brain damage and even death.