Dozens of cold and flu remedies should be pulled from shelves because they don't work, a leading expert has claimed. US health officials have already ruled oral drugs containing phenylephrine are 'not effective' decongestants after reviewing decades of evidence. Nasal sprays packed with the same ingredient escaped the judgement. The move could see popular over-the-counter tablets and pills discontinued in the US, which would send shockwaves through the multi-million-pound industry.
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