SIDE EFFECTS: See also Warnings.
Diarrhea, excitation, or trouble sleeping may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor immediately if any of these serious side effects occur: mental/mood changes, swelling of the ankles/feet, unusual or rapid weight gain, trouble breathing, decreased/increased interest in sex, new or worsening acne.
Males before puberty - tell your doctor immediately if any of these signs of maturation occur while taking this drug: enlargement of the penis, more frequent erections.
Adult males - tell your doctor immediately if any of these serious side effects occur: hair loss, trouble urinating, changes in testicle size, impotence, breast tenderness/swelling.
For males, in the very unlikely event you have a painful or prolonged erection lasting 4 or more hours, stop using this drug and seek immediate medical attention, or permanent problems could occur.
Females (both young girls and women) may experience signs of masculinization. These changes may be irreversible. Discuss the risks and benefits of therapy with your doctor. Seek immediate medical attention if the following serious side effects occur: deepening of the voice/hoarseness, facial hair growth, new or worsening acne, clitoral enlargement, menstrual period changes.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
Contact your doctor for medical advice about side effects. The following numbers do not provide medical advice, but in the US you may report side effects to the Food and Drug Administration (FDA) at 1-800-FDA-1088. In Canada, you may call Health Canada at 1-866-234-2345.
PRECAUTIONS: See also Warning section.
Before taking oxymetholone, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies.
This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: breast cancer (males), breast cancer with high blood calcium levels (females), prostate cancer, severe kidney disease, severe liver disease.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: kidney disease, liver disease, heart disease (e.g., congestive heart failure, coronary artery disease), swelling (edema, fluid retention), enlarged prostate, diabetes.
If you have diabetes, oxymetholone may increase your blood sugar level. Check your blood (or urine) glucose level frequently, as directed by your doctor and promptly report any abnormal results. Your diabetes medicines may need to be adjusted.
Caution is advised when using this drug in children because they may be more sensitive to its effects. This medication may stunt growth in children under 18 years of age. Periodic bone x-rays may be used to monitor the drug's effects on bone growth. Oxymetholone may also affect sexual development in children. Consult your doctor for more details.
This medication must not be used during pregnancy due to the risk of harm to an unborn baby. If you become pregnant or think you may be pregnant, inform your doctor immediately. It is recommended that young girls and women of child-bearing age use effective birth control while taking this drug.
It is not known whether this drug passes into breast milk. However, due to the potential harm to a nursing infant, breast-feeding is not recommended. Consult your doctor before breast-feeding.