What are the possible adverse effects of clonidine?

Updated: May 30, 2020
  • Author: David Riley, MD, MSc, RDMS, RDCS, RVT, RMSK; Chief Editor: Michael A Miller, MD  more...
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Answer

At therapeutic doses (0.2-0.9 mg/d), clonidine is commonly associated with adverse effects such as dry mouth, sedation, dizziness, and constipation. While generally safe, at toxic doses clonidine can cause serious cardiopulmonary instability and central nervous system (CNS) depression in children and adults.


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