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A pharmacy drugs expert, Hisham Al-Obaidi, suggests banning popular cold and flu remedies containing phenylephrine due to minimal effectiveness when taken orally, despite being widely used in cough and cold medicines like Sudafed and Benadryl. The American FDA is considering prohibiting phenylephrine sales in the US. Dr. Al-Obaidi recommends using nasal spray instead, as it bypasses the gastrointestinal tract and liver breakdown, allowing for more direct relief of congestion and blood vessel constriction.
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