Which part? Letrozole, anastrozole, and exemestane (the three biggest AIs) are all incredibly effective at keeping estrogen levels within range given a knowledgable doctor providing supervision.
The biggest problem is that there is a lot of taboo with testosterone treatments and finding a doctor that keeps up to date with the research is incredibly difficult depending on where you are located.
The biggest problem is that there is a lot of taboo with testosterone treatments and finding a doctor that keeps up to date with the research is incredibly difficult depending on where you are located.