I took finasteride for 3.5 years and had a blood test in May 2005 - 2months after stopping:
Testosterone was 14 nmol/l (ref 8 - 32)
In december 2006 I had following results:
Testosterone  4.8 nmol/l
LH    1.6
FSH  2.2 u/l
This has all been done on the NHS here in UK (I don’t have private insurance) and it’s been hard getting them to test blood for anything.
I have been referred to Dr Minhas a urologist at UCHL London who has some experience of patients with finasteride side-effects - appointment is on 8 feb.
Although my problem has been muscle wastage - I have not really got a problem with erections.  Minor problems with loss of concentration and chronic constipation.
Any comments are welcome, cheers.
 
      
    