stronger warnings about Seroquel (quetiapine) and "QT prolongation" heart problems

You'll see stronger warnings about Seroquel (quetiapine) and "QT prolongation" heart problems.

The "QT interval" refers to specific spikes and humps on a person's EKG...which are identified with letters, "Q," "T," etc. The distance between these spikes and humps gives clues to how the heart is working.

When the QT interval is prolonged, it indicates that the heart isn't beating normally...and sudden death is a risk.

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