your friend did not gain 20 lbs on primo.. thats just completely and utterly a lie and false... no steroid will make you gain 20 lbs... you may gain it in water weight, but not actual weight and it will come off.. not to mention, primo would never have that ability whatsoever on its own
beyond that, you are just making up and throwing out arbitrary dosing numbers that are careless, reckless and show your immaturity and ignorance which point out you have less than zero business having the word steroids in your vocabulary