Azithromycin, commonly known as a “Z-Pak,” is an oral antibiotic used to treat a wide range of bacterial infections. It works by stopping the growth of bacteria, making it useful for upper and lower respiratory tract infections, including bronchitis, sinus infections, strep throat, and community-acquired pneumonia. The convenience of the Z-Pak lies in its prepackaged dosing regimen, which is designed to be simple and easy to follow over a five-day course.
Usage Instructions
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Typically used for the treatment of upper respiratory bacterial infections, including bronchitis, sinusitis, strep throat, and pneumonia
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Packaged as a five-day regimen: 2 tablets (500 mg) on day 1, followed by 1 tablet (250 mg) once daily on days 2 through 5
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Complete the full course as prescribed, even if symptoms improve early
Warnings & Precautions
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Not effective for viral illnesses
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May cause side effects including diarrhea, nausea, abdominal pain, or headache
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Rare but serious side effects include allergic reactions, liver problems, or abnormal heart rhythms (QT prolongation)
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Should not be used without the guidance of a healthcare provider, especially in individuals with a history of liver disease or heart rhythm issues