Think of what happens when you take an oral it has to pass through your liver which breaks it down and through your kidneys. 10mgs is a small amount on the avergae for guys who have done more than 1 or 2 cycles, but even this small amount can affect your Liver Function Tests( LFT ).When you pass to much through the liver it causes a strain to its function, something you do not want to do. Some damage is ir-reversible. Now think of when you put two orals in at one time you are making the liver do double time. It is def worth passing on.