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Winstrol

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Discontinued Warning IconPlease Note: This Brand Name drug is no longer available in the US.
(Generic versions may still be available.)

Winstrol Patient Information Including Side Effects

Brand Names: Winstrol

Generic Name: stanozolol (Pronunciation: stah NO zo lall)

What is stanozolol (Winstrol)?

Stanozolol is a man-made steroid, similar to the a naturally occurring steroid testosterone.

Stanozolol is used in the treatment of hereditary angioedema, which causes episodes of swelling of the face, extremities, genitals, bowel wall, and throat. Stanozolol may decrease the frequency and severity of these attacks.

Stanozolol may also be used for purposes other than those listed here.

What are the possible side effects of stanozolol (Winstrol)?

In rare cases, serious and even fatal cases of liver problems have developed during treatment with stanozolol. Contact your doctor immediately if you experience abdominal pain, light colored stools, dark colored urine, unusual fatigue, nausea or vomiting, or yellowing of the skin or eyes. These may be early signs of liver problems.

If you experience any of the following serious side effects, contact your doctor immediately or seek emergency medical attention:

  • an allergic reaction (difficulty breathing; closing of the throat; swelling of the lips, tongue, or face; or hives);
  • swelling of the arms or legs (especially ankles);
  • frequent or persistent erections, or breast tenderness or enlargement (male patients); or
  • voice changes (hoarseness, deepening), hair loss, facial hair growth, clitoral enlargement, or menstrual irregularities (female patients).

Other less serious side effects may also occur. Talk to your doctor if you experience

  • new or worsening acne;
  • difficulty sleeping;
  • headache; or
  • changes in sexual desire.

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.

What is the most important information I should know about stanozolol (Winstrol)?

In rare cases, serious and even fatal cases of liver problems have developed during treatment with stanozolol. Contact your doctor immediately if you experience abdominal pain, light colored stools, dark colored urine, unusual fatigue, nausea or vomiting, or yellowing of the skin or eyes. These may be early signs of liver problems.

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You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.


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