Sublingual B12

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The Causes of Chronic Cough

…other irritants. If you have an unresolved cough, give Vitamin B12 supplements (1,000 mcg daily) a try. There’s an erroneous belief that injections or sublingual tablets are the only way to raise blood levels of this vitamin, but oral B12 works just fine. It’s safe, well tolerated—and just might…

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