sd is bad for your liver, cardiovascular system, testosterone production (when shut down from superdrol, your testicles can shrink), and can cause gyno (plastia?)
When you finish taking SD, the next day start taking
nolva (tamoxifen citrate) 40-20-20 for a three week cycle. Post Cycle should last as long as your cycle.
For liver protection you can take milk thistle
For cardio protection you can take red yeast rice (pills)
the nolva should take care of gyno issues
Something like 6-oxo or rebound xt is also needed. (Aromatase inhibitor)
taurine can help against back cramps
saw palmetto can help protect your prostate