/hrt/masculinizing/testosterone-undecanoate
Testosterone Undecanoate
[testosterone]Rev: 2025.12
Summary
Very long-acting testosterone ester. Injectable form is typically in MCT oil and allows for very infrequent dosing. Also available as oral capsules.
DESCRIPTION
Testosterone undecanoate (TU) is a very long-acting testosterone ester available in both injectable and oral forms. The injectable form (Nebido/Aveed) has an extremely long half-life allowing for injections every 10-14 weeks. The oral form is taken daily with food.
DOSING GUIDELINES
| Route | Dose Range | Frequency | Target Levels |
|---|---|---|---|
| Injection (IM) / Injection (SubQ) | 300mg – 400mg | Monthly | 600ng/dL |
| Oral | 120mg – 160mg | Daily | 600ng/dL |
DETAILED NOTES
Injection (IM) / Injection (SubQ)
Very long lasting, infrequent injections.
Oral
Despite longer ester chain, taken daily.
WHERE TO BUY
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Rev: 2025.12hrt.fm