Can A Sleeping Pill Awake Someone From A Peristent Vegetative State?

Today's latest medical news concerns a fascinating report out of South Africa where it was reported that administering a sleeping pill  (Zolpidem) to individuals in a persistent vegetative state caused them to regain consciousness for several hours and then again return to their state of unconsciousness. 

The dramatic improvement occurs within 20 minutes of taking the drug, and wears off after around four hours - at which point the patients return to their permanent vegetative state, according to a paper published in the medical journal NeuroRehabilitation.

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