What QT Prolongation Means

Some medications increase the risk your heart’s electrical system will short‑circuit, causing sudden cardiac death.

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Hydroxychloroquine (HCQ) is an old drug used to treat malaria and lupus. When HCQ was proposed as a potential treatment for COVID-19, many cardiologists were quick to express concern over using a drug that prolongs the QT interval. Not knowing what this means, and eager for a cure, many people were willing to overlook this […]
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