I did an Anavar cycle about a month ago. Also posted bloodwork before and after cycle, so if those figures say something to you, you can evaluate the toxicity. Haven't used H-drol though.
Before cycle:
HDL: 48 mg/dL
LDL: 81mg/dL
triglycerids: 70mg/dL
cholesterol: 141mg/dL
ALAT: 21 U/L
ASAT: 20 U/L
One week in cycle:
AST: 25 U/L
ALT: 30 U/L
bp: 120/65
One week after cycle:
HDL: 24 mg/dL
LDL: 109 mg/dL
cholesterol:147 mg/dL
ALT: 41 U/L
bp: 120/85