Although over-the-counter cough medicine often contains dextromethorphan (DM), it is not the only source ... At first, my doctor increased the dose of metoprolol, but my heart rate slowed down too ...
Lingering coughs after upper respiratory infections like the common cold or flu are called post-infectious or post-viral coughs. A lingering cough is mostly dry and is often referred to as "sub-acute, ...
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