Winstrol

One of the most famous and used substances in the world of bodybuilding, whose active principle is stanozolol, which is a drug with anabolic effects that stimulates protein synthesis

In rare cases, serious and even fatal cases of liver problems have developed during treatment with stanozolol (the active ingredient contained in Winstrol) 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.

For Healthcare Professionals

Applies to stanozolol: oral tablet.

Cardiovascular

Cardiovascular effects may be precipitated in patients adversely affected by fluid retention. Edema, with and without congestive heart failure, has occurred during anabolic steroid therapy.^[Ref]

Genitourinary

Genitourinary effect following chronic administration and/or large dosages of anabolic steroids can result in oligospermia and decreased ejaculatory volume. Elderly male patients may experience prostatic enlargement resulting in urinary obstruction. Priapism and excessive stimulation may develop.

In female patients the use of anabolic steroids may result in virilization including deepening voice, hirsutism, acne, clitomegaly (not reversible), and menstrual abnormalities. Discontinuation of medication at signs of mild virilization may prevent irreversible virilization.