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U.S. Department of Health and Human Services

Safety

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Qualaquin (quinine sulfate USP) capsule

Detailed View: Safety Labeling Changes Approved By FDA Center for Drug Evaluation and Research (CDER) – June 2010

Summary View

MEDICATION GUIDE

Qualaquin used to treat or prevent leg cramps may cause serious side effects or even death.
  • In some people, serious kidney problems can happen.
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