Symptomatic male hypogonadism, defined by low serum testosterone with associated clinical symptoms, is increasingly treated with testosterone replacement therapy. Traditional oral formulations were limited by hepatotoxicity and poor bioavailability, leading to reliance on injectable and transdermal routes. Recent advances in oral testosterone undecanoate formulations have introduced safer and more effective options. This review compares Jatenzo, Tlando, and Kyzatrex, highlighting their pharmacology, efficacy, safety, and...
* Oral TRT, particularly testosterone undecanoate (TU), offers notable convenience. TU is absorbed via the lymphatic system, bypassing first-pass hepatic metabolism, making it a promising agent for TRT. Its absorption, however, is influenced by dietary factors, such as lipid intake, thus the high-fat consumption promoting lymphatic absorption. Pharmaceutical technology developed TU formulations incorporate special self-emulsifying systems that enhance lymphatic absorption regardless of food fat content. This lymphatic absorption allows for stable testosterone levels...
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