Let's take a minute to talk about your medication. This is testosterone for injection. It is used to treat low levels of testosterone in men who have certain medical conditions. It may have other uses, too. Testosterone comes in many forms. You will be injecting this medicine into the muscle. Your doctor will decide which dose is best for you. You should read the 'Instructions for Use' for full information. Before giving a dose at home, you should demonstrate an injection to your doctor, so you feel confident. Also, you will learn how to rotate injection sites and how to dispose of needles. If you still have questions, your doctor or pharmacist can help. Most people tolerate testosterone well. Common side effects include nausea, headache, and pain at the injection site. Some people will notice enlarged breasts, skin changes, and mood swings. Other side effects are possible. If these or other side effects become reasons you want to stop taking this medicine, please talk to your doctor or pharmacist. As with any medicine, rare but more serious side effects can occur. You should read the Patient Information Sheet to know which symptoms to watch for and when to report changes. To help keep this medicine safe for you, your doctor will follow your condition closely and may order blood tests. Testosterone for injection can interact with other medicines. You should always check with your doctor or pharmacist before taking or using other medicines. This medicine is controlled by federal law. It can put you at risk for addiction, abuse, misuse, overdose, and death. It can be dangerous to others, so store it in a safe place. After you stop taking it you should dispose of it properly. Ask your pharmacist about proper disposal options in your area or go to the FDA.gov website for more information. For best results with testosterone for injection, be sure to follow your doctor's instructions closely for administering this medicine.