What is JATENZO?

JATENZO is approved by the FDA as a prescription drug used to treat adult men who have low or no testosterone levels due to certain medical conditions.

JATENZO is a controlled substance (CIII) because it contains testosterone. It is not known if JATENZO is safe or effective in children younger than 18 years old. Improper use of JATENZO may affect bone growth in children.

FAQs &

Here to help

Weߴve pulled together some tools to help you on your treatment journey. Check out the
sections below and explore the resources available to you.

Answers to Questions

Get good-to-know info below. Here, youߴll find answers to questions and details about JATENZO.

I am new to JATENZO

You need a prescription from a doctor for JATENZO.


JATENZO (testosterone undecanoate) is a testosterone replacement treatment, made for men who have low or no testosterone due to certain medical conditions and prefer oral capsules to other methods of replacing testosterone.


JATENZO was designed to get men into that normal testosterone zone—The JATENZONE. The oral softgel capsules deliver testosterone directly to the lymphatic system, bypassing the liver. Using this safe oral delivery method, JATENZO was shown to release 97% of each dose directly into circulation in your body with no liver toxicity-related side effects in clinical studies.


Men 18 years and over who have low or no testosterone due to certain medical conditions. JATENZO is not indicated for use in women or men with breast cancer or known or suspected prostate cancer.


JATENZO is an oral formulation of testosterone undecanoate that is absorbed via the intestinal lymphatic system, therefore bypassing the liver. In clinical trials, no liver toxicity events were observed.* Because there are no studies that directly compare treatment options, it’s important for you to find the one that works best for you and your needs. Talk to your doctor to help find the best treatment for you.


In clinical trials, JATENZO raised T levels to the normal range in 87% of men. Steady state T levels were also reached as early as Day 7 for men in the clinical study. However, because there are no studies that directly compare treatment options, it’s important for you to talk to your doctor to find the option that works best for you.*


I am a JATENZO patient

JATENZO is designed to be taken on the go. Store JATENZO in a dry place at room temperature between 68°F to 77°F (20°C to 25°C). Keep JATENZO and all medicines out of the reach of children.


Take JATENZO twice a day with food—in the AM and then again in the PM—to help keep your testosterone levels right where they should be.


Take the medicine as soon as you can, but skip the missed dose if itߴs almost time for your next dose. Donߴt take 2 doses at one time.


In a clinical study, JATENZO raised testosterone levels to the normal range in 87% (n=145/166) of adult men at 4 months.


JATENZO may cause serious side effects, including increase in blood pressure; increase in red blood cell count or hemoglobin; worsening signs and symptoms of pre-existing enlarged prostate; increased risk of prostate cancer; or blood clots in the legs or lungs. In large doses, JATENZO may lower sperm count; cause liver problems; cause swelling of ankles, feet, or body, with or without heart failure; cause enlarged or painful breasts; or cause breathing problems while you sleep and changes in mood. These are not all the possible side effects of JATENZO. For more information, ask your healthcare provider or pharmacist. In the inTUne study, the most common side effects with JATENZO (incidence ≥2%) were headache (5%), increased red blood cell count (5%), hypertension (4%), decreased HDL (“good”) cholesterol (3%), and nausea (2%).


It feels good to save money. With the JATENZO Savings Card, you may pay as little as $0 for JATENZO. Restrictions may apply. A maximum benefit per calendar year will be applied.


Resources for you

Interested in learning more? Check out these resources available to you.

Testosterone treatment
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