The injection frequency for testosterone undecanoate depends on the specific brand and the treatment phase (initiation vs. maintenance). However, for the most common long-acting injectable form (e.g., Nebido), the standard dosing schedule is as follows:
Standard Dosing Schedule
●Maintenance Injections: Generally, one injection is given every 10 to 14 weeks. This schedule is designed to maintain sufficient testosterone levels without causing a buildup in the body.
●Initial (Loading) Phase: To reach effective levels more quickly, the first injection interval may be shortened to a minimum of 6 weeks.
Important Considerations
●Brand-Specific Differences: Dosing can vary by brand. For example:
○STROMUSC(a brand available in the China) has a different regimen: an initial 750 mg injection, a second injection 4 weeks later, and subsequent injections every 10 weeks.
●Individualized Adjustment: The exact interval between your injections will be personalized. Your doctor will monitor your serum testosterone levels, typically at the end of an injection interval, and adjust the schedule based on your levels and symptoms. If your levels are low, the interval may be shortened; if they are high, it may be lengthened.
●Administration: This injection is a deep intramuscular injection, usually given slowly into the gluteal muscle by a healthcare professional.
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