Anabolic Steroids/Hormones
Testosterone Undecanoate (Oral)
Jatenzo · Andriol · Oral TU
Oral testosterone (Jatenzo/Andriol) with low lymphatic bioavailability; dosed twice daily with food.
🚧 Expanded guide coming soon. This compound has PK data and a source — a full overview, mechanism, and dosing guide is pending editorial review.
Pharmacokinetic summary
- Model tier
- Advanced (t½ + Cmax + Tmax + F)
- Half-life
- 0.8 days
- Cmax
- 600 ng/dL
- Tmax
- 0.2 days
- Bioavailability
- 7%
- Typical dose
- 158–396 mg
Harm reduction
- Aromatizes
- Yes
- DHT derivative
- No
- Hepatotoxicity
- mild
- Injection frequency
- Oral, 2×/day
Related compounds
Testosterone Enanthate
Long-acting testosterone ester; the most common TRT and cycle base. Reaches steady state in ~5 weeks.
Testosterone Cypionate
Standard US TRT ester with a slightly longer release tail than enanthate. Steady state ~4–5 weeks.
Testosterone Propionate
Short-acting ester with sharp peaks; requires frequent injection. Useful for frontloading.
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