This medicine is a male hormone prescribed when the hormone is not produced naturally by your body. It is also used to stimulate puberty, treat certain breast cancers in women, and stop lactation (milk production) in women who are not breast-feeding after childbirth.

Use by athletes to improve muscle strength is not recommended.

Proper Use

Take this medicine exactly as directed. Do not take more of it or take it longer than directed.

Certain forms of this medicine (buccal tablets) are not swallowed. Follow your doctor's instructions for using buccal tablets. Do not miss a dose, and do not take double doses.

Please Note

Your doctor may want to see you regularly to check your progress.

Long-term use of this medicine, especially in large doses, may cause enlargement of the breasts in men and growth of facial hair in women. If you have one of these problems, contact your doctor.

Diabetics: This medicine may affect your blood sugar level and change the amount of insulin or other diabetes medicines you may need. Talk to your doctor about this.

Possible Side Effects

Serious (report these to your doctor right away): Yellowish eyes or skin, dark urine, black or very light bowel movements, sore throat, fever, bloody vomit, red spots on your skin or in your mouth.

Other: Constipation, diarrhea, stomach pain, trouble sleeping.

Important: Other side effects have been reported in both men and women. Report any ill effects to your doctor right away.

Tell your doctor if you have any side effects that continue or get worse.

Possible Drug Interactions

When you take this medicine with other medicines, it may increase or decrease the effects of the medicines. Or the combination may cause harmful side effects. Some medicines that may interact with this medicine are:

• blood thinners
• insulin or other medicines for diabetes
• steroids or ACTH.

Be sure that you tell all doctors who treat you about all medicines you are taking, including nonprescription products.

This educational document includes selected information only and may not include all side effects of this medicine or interactions with other medicines. Consult your doctor or pharmacist for more information or if you have any questions.

Keep all medicines out of the reach of children.
Other Names For This Medication:

fluoxymesterone, oral; Halotestin (fluoxymesterone, oral); Android-10 (methyltestosterone, oral); Android-25 (methyltestosterone, oral); methyltestosterone, oral; Oreton Methyl (methyltestosterone, oral); Testred (methyltestosterone, oral); Virilon (methyltestosterone, oral); androgens, oral