Exploring FDA-Approved Testosterone Injection: A Comprehensive Review

There are three FDA-approved testosterone injection formulations for use: TC (Test Cypionate),TE (Test Enanthate), and TU (Test undecanoate). They are both testosterone and have different half-lives because they attach to ester chains of different lengths. TU has the longest ester chain, consisting of 11 carbon atoms, so it has the longest half-life and lasts longer after injection. TC and TE compose of 7 and 8 carbon atoms, respectively.

This article provides an in-depth overview of the FDA-approved testosterone injection options, their benefits, and considerations for individuals.

Test Cypionate(TC)

TC finished steroid is one of the most common using testosterone injections. This is a long-acting preparation that delivers testosterone slowly into the bloodstream. This reduces the frequency of injections, which are usually use at every 1-2 weeks. Effective results show in increasing testosterone levels and addressing symptoms associate with low testosterone.

TC is generally available in two different concentrations, 100mg/ml and 200mg/ml, dissolved in cottonseed oil.

The clinically recommended dose for testosterone therapy is 75mg-100mg intramuscular injection weekly or 150-200mg intramuscular injection every two weeks. One study of TC 200mg administration in hypogonadal males,

Test Enanthate(TE)

TE is another FDA-approved testosterone injection. It is similar to TC in terms of duration of action and frequency of administration.

The common concentration of TE is 200mg/ml and formulate with sesame oil.

Test undecanoate(TU)

TU is a unique testosterone injection formulation that utilizes long-acting esters, the using frequently is less than TC and TE, and this long-acting testosterone provides convenience for those who do not prefer frequent injections.

TU formulate with a concentration of 250mg/ml and prepare from refined castor oil. The recommended dose is 750Mg intramuscularly every 4 weeks and, after 8 weeks, 750mg every 10 weeks.

Choose the right testosterone Injection

TC, TE and TU are three types of testosterone injection, each with its own unique characteristics and frequency of administration, users can choose their own testosterone Injection based on personal factors, lifestyle, medical history and preferences.

In addition to treating hypogonadism, these testosterone injections can increase energy levels, improve sexual function, increase muscle mass, and improve mood and health. However, we should also consider  possible side effects during use, including acne, fluid retention, and potential effects on prostate health. Timely guidance from healthcare providers is essential to ensure the safe use of testosterone injection.