The label on Lizard Blizzard, for example, said the drink was "loaded with nature's most powerful cold and flu fighters," a statement the F.D.A. said it would allow only on a drug that had undergone extensive testing.
Similarly, there's not enough scientific evidence to demonstrate that zinc and vitamin C are powerful weapons against the cold and flu.
Perhaps it is no surprise, then, that makers of cold and flu products view the Olympics as a powerful advertising medium.
But she creates a powerful sense of mystery about what, exactly, is causing "the word flu," how it is spreading, and why it is affecting different people in different ways.
However these once powerful drugs encountered drug-resistant problem to the H5N1 and H1N1 flu.
Margaret Chan, 64, has been on the frontline of the global fight against swine flu, Sars and bird flu – and is now said to be the most powerful international public health official in history.
Therefore I feel that by writing for TV I could reach them through that powerful medium, and bring to them a higher awareness of such problems as Global Warming, Avian Flu, earthquakes in places like Pakistan, and the tsumani.
The researchers believe the "extraordinarily" powerful antibodies were created as the body learned how to fight the new infection with swine flu using its old memory of how to fight off other flu viruses.
With the coming of the deadly Spanish flu pandemic in 1918, aspirin by whatever name secured a reputation as one of the most powerful and effective drugs in the pharmacopeia of the time.
