100% superdrol will shut down testosterone levels. It is VERY suppressive of natural testosterone production.
If you don't want to use a testosterone base with your cycle, make sure to use a good natural testosterone booster with your cycle like hcgenerate from n2bm.com to keep testosterone suppression and testicular atrophy to a minimum.
You also need an AI like aromasin to keep estrogen in the low-normal range and a good liver aid supplement like n2guard from n2bm.com.
This article explains everything you could ever want to know about superdrol ->
http://www.evolutionary.org/forums/...xplained-47804.html?highlight=superdrol+cycle
Weeks 1-6
- Superdrol 40mg per day
- N2Guard 7 caps per day
- aromasin 10mg EOD
- HCGenerate 5 capsules/da
*follow this cycle with a proper PCT such as The Perfect PCT - http://www.evolutionary.org/the-perfect-post-cycle-therapy-pct/