This medication is given by injection into the buttock muscle as directed by your doctor, usually every 1 to 4 weeks. Do not inject this medication into a vein. Dosage is based on your medical condition, testosterone blood levels, and response to treatment.
If you are giving this medication to yourself at home, learn all preparation and usage instructions from your health care professional. Before using, check this product visually for particles or discoloration. If either is present, do not use the liquid. Learn how to store and discard medical supplies safely.

Use this medication regularly in order to get the most benefit from it. To help you remember, use a calendar to mark the days you will receive an injection.
Misuse or abuse of testosterone can cause serious side effects such as heart disease (including heart attack), stroke, liver disease, mental/mood problems, abnormal drug-seeking behavior, or improper bone growth (in adolescents).

Do not increase your dose or use this drug more often or for longer than prescribed. When testosterone is misused or abused, you may have withdrawal symptoms (such as depression, irritability, tiredness) when you suddenly stop using the drug. These symptoms may last from weeks to months.