In my experience and I have experimented multiple times with anavar alone at 10–40mgs of pharma grade and it brings the test levels down but not that bad for me anyways. I took 20mgs a day for 8 weeks then 10mgs a day for 8 weeks and my test levels prior were 878 and 8 weeks in test level was 533 and 16 weeks 416 and 20 weeks no pct 371 so yes it crashed me but not completely. But everyone is different.