“…Adverse effects of androgen pubertal induction include erythrocytosis, weight gain, and irreversible development of male secondary sex characteristics, which may be distressing in case of GD. Intramuscular testosterone esters can be started at a dose of 50 mg monthly, increasing by 50-mg intervals every 6-12 months to a dose of 250 mg monthly, at which point a long-acting adult testosterone formulation can be commenced (testosterone undecanoate 1000 mg every 12 weeks, [51,91]). Otherwise, oral testosterone undecanoate 40 mg daily can be given with the evening meal and gradually titrated upward every 6 months to an adult dose of 160-240 mg per day, or to other testosterone formulations [51,91].…”