Testosterone is a naturally occurring male hormone necessary for many processes in the body.

Testosterone nasal (for use in the nose) is used to treat conditions in men that result from a lack of natural testosterone.

Testosterone will not enhance athletic performance and should not be used for that purpose.

Testosterone nasal may also be used for purposes not listed in this medication guide.

You should not use this medicine if you are allergic to testosterone nasal gel, or if you have:

• prostate cancer; or
• male breast cancer.

To make sure testosterone nasal is safe for you, tell your doctor if you have:

• a history of problems with your sinuses or nasal passages;
• a history of surgery on your nose or sinuses;
• a broken nose (now or within the past 6 months);
• a deviated septum (crooked nose);
• breast cancer, prostate cancer;
• enlarged prostate, urination problems;
• sleep apnea (breathing stops during sleep);
• heart disease, history of heart attack or stroke;
• a history of blood clots; or
• liver disease or kidney disease.

Older men who use testosterone nasal may have an increased risk of prostate enlargement. If you are over 65, talk with your doctor about your specific risk.

This medicine should not be used by a woman. Testosterone can cause birth defects in an unborn baby. A pregnant woman should avoid coming into contact with testosterone nasal gel. If contact does occur, wash with soap and water right away.

Testosterone nasal is not approved for use by anyone younger than 18 years old.

Use Testosterone Nasal (Nasal) exactly as directed on the label, or as prescribed by your doctor. Do not use in larger or smaller amounts or for longer than recommended.

Get emergency medical help if you have signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop using testosterone nasal and call your doctor at once if you have:

• increased urination (many times per day), loss of bladder control;
• painful or difficult urination;
• swelling, rapid weight gain, shortness of breath during sleep;
• breast pain or swelling;
• chest pain or pressure, pain spreading to your jaw or shoulder;
• painful or bothersome erections;
• nasal problems--runny or stuffy nose, sneezing, nosebleed, nose pain or dryness, scabs inside or around your nose;
• liver problems--nausea, upper stomach pain, itching, tired feeling, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes);
• signs of a blood clot in the lung--chest pain, sudden cough, wheezing, rapid breathing, coughing up blood; or
• signs of a blood clot in your leg--pain, swelling, warmth, or redness in one or both legs.

Common side effects may include:

• nasal problems;
• sore throat; or
• headache.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Avoid using other medications in your nose, unless your doctor tells you to.