IMO.. keep him off the drugs.. I wouldn't treat or target hormones, even if he gets bloods and levels are off, that's because he is UNHEALTY.
I would suggest investing into a coach, seriously, and just focus on clean eating habits.. Learning how to eat and getting familiar with the kitchen will be the game changer for him, not drugs.
Cardio and clean diet, get rid of his current body composition, get down to a base and start from there.
You can 100% guarantee that his numbers on a future blood essay will most likely improve drastically, if he pulls things together with a healthy way of life with eating, training and cardio....
If he is truly consistent and puts in the work, in just 4 weeks he could see amazing results..
I strongly encourage him to learn about himself and discovers how he responds to adding and subtracting certain nutrients and timing food, without the presence of drugs..