To date, no drug has been approved in its leaf form because plants contain a complex composition of compounds with uncertain pharmacologies, metabolisms, side-effect profiles, toxicologies, drug interactions, and no control of relative concentrations.

ECONOMIST: Egypt's challenge

Drugstores, both the mail-order and walk-in kind, use software that warns patients of drug interactions.

FORBES: Script doctor

The problem for regulators, though, is that interactions between drug company sales representatives and doctors occur behind closed doors--and just because a doctor is prescribing a medicine for an unapproved use doesn't mean the drug firm suggested that he do so.

FORBES: When Doctors Go Off-Label

Girl Scout Troop develops non-pharmaceutical remedy for sleeplessness in senior citizens: When faced with the challenge of alleviating insomnia without complicated drug interactions, The Atomic Flying Pickles, a FIRST Lego League team of 6th grade Girl Scouts hailing from Los Alamos, New Mexico , came up with a novel idea.

WHITEHOUSE: The White House