After patients have decided to start Testosterone replacement therapy via intramuscular injection route, then we go through this question “Which testosterone formula is suitable for individuals?” Today we will compare between 2 intramuscular injection preparation, Testosterone enanthate & Testosterone undecanoate.

There are several literatures confirmed that the injection’s formula can improve both sexual behaviors and general well-being parameters significantly after 30 weeks of a regular treatment.

Sexual behaviors parameters which show the improvement
- Sexual visualization
- Sexual desirable
- Sexual satisfaction
- Numbers of ejaculations per week
- Number of erections per week
- Number of morning erections per week

General well-being parameters which show the improvement
- More focusing
- Agitating
- Self-confidence
- Less dizziness
- More active
- Better moody
I will make comparisons between those 2 intramuscular formulas in the following table below.
Testosterone replacement therapy formulas
Testosterone enanthate | Testosterone undecanoate | |
Generic name | Testosterone enanthate | Testosterone undecanoate |
Strength | 250 mg | 1000 mg |
Interval injection period | 3 weeks | 12 weeks |
Site of injection | Buttock or thigh | Buttock |
Self-injection option | Yes | No |
Cost per vial (RPH updated 2022) | 22 USD | 363 USD |
Now you can see pros and cons between Testosterone enanthate & Testosterone undecanoate, the options are depended on you. Any questions, you can talk or discuss with your trusted Andrologist on the tailer-made testosterone replacement therapy or it would be my honor if you text me. Bye!
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