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"This pill helped when nothing else would.  It works pretty fast, and I have no side effects.  This is my first day, and I have taken two so far.   I usually take Robitussin DM, but I like Benzonatate better, because it is easy on my stomach. I also have COPD.  I wish it would work longer than it does, but neither does the Robitussin.  I am glad my Pulmonologist recommended these little pills."