Many ginseng-based cold remedy claims unproven, expert says

From CBC News:
The success of a natural cold remedy has spawned a number of knock-offs based on ginseng, but in most cases, the science behind the products is lacking.

Cold-fX was developed at the University of Alberta and has quickly become the biggest selling cold medicine in Canada.

"I think it's a big market," said Pam Lavold, a pharmacist in Edmonton. "I think everybody is jumping on the bandwagon and putting out their own product." ...more