PRECAUTIONS: Before using testosterone, tell your doctor or pharmacist if you are allergic to it; or to soy; 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: male breast cancer, prostate cancer.Before using this medication, tell your doctor or pharmacist your medical history, especially of: liver problems, prostate problems (e.g., enlarged prostate or benign prostatic hyperplasia-BPH), heart problems (e.g., congestive heart failure, coronary artery disease), kidney problems, swelling (edema), ongoing lung disease, diabetes, high cholesterol level, difficulty breathing during sleep (apnea), obesity, high blood pressure, bone cancer.Some men, particularly the elderly, are at a higher risk for developing enlarged prostates or prostate cancer while using this medication. Your risk of prostate problems should be checked by your doctor before you start testosterone.Use extreme caution if using this drug in children because it might stunt the growth of the child. Monitor the child's growth rate carefully.This medication should not be used by women, especially pregnant or breast-feeding women. This drug has been shown to cause harm to an unborn or breast-feeding baby. Discuss the risks with your doctor.

DRUG INTERACTIONS: Your healthcare professionals (e.g., doctor or pharmacist) may already be aware of any possible drug interactions and may be monitoring you for it. Do not start, stop or change the dosage of any medicine before checking with them first.Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially of: "blood thinners" (e.g., warfarin), corticosteroids (e.g., prednisone), drugs for diabetes (e.g., insulin), oxyphenbutazone, propranolol, sodium fusidate.This medication may interfere with certain laboratory tests (including thyroid tests, creatinine levels), possibly causing false test results. Make sure laboratory personnel and all your doctors know you use this drug.This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist.

Report Problems to the Food and Drug Administration 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. Need help identifying pills and medications? Use the pill identifier tool on RxList.