No, testosterone decanoate and testosterone undecanoate are not the same compounds. They are different ester forms of testosterone, which is the primary male sex hormone. The ester attached to the testosterone molecule affects how it is absorbed and released in the body, leading to variations in the duration of action.
Testosterone Decanoate: This is a testosterone ester with a 10-carbon decanoate chain attached to the testosterone molecule. It is typically used in injectable forms and has a longer duration of action compared to some other testosterone esters, meaning it stays in the body for a longer period before needing another injection.
Testosterone Undecanoate: This is another testosterone ester, but it has a longer 11-carbon undecanoate chain attached to the testosterone molecule. Testosterone undecanoate is commonly used in oral formulations, such as capsules or tablets. It has a unique pharmacokinetic profile, providing a slow and sustained release of testosterone in the body over several weeks. This makes it suitable for testosterone replacement therapy with less frequent dosing.
Both of these testosterone esters are used for different purposes, and their choice depends on the specific medical condition or therapeutic goals. It's essential to use them under the guidance of a healthcare professional, as the dosing and administration can vary based on individual needs and circumstances.