There are obviously sides possible with any kind of androgenic compound usage, but PP is more androgenic than the average ph/ps. You have to watch for any kind of signs of organ or system stress/damage, acne, oily skin/scalp issues, hair loss, etc. You need to take note also that you may not necessarily be able to visually monitor your liver, kidney, or other organ stress/damage. You need to take appropriate measures to protect your body from damage. Taking ancillaries to safegaurd your blood pressure, cholesterol, heart, liver, kidneys, and other organs is recommended. I would also recommend getting a full blood lipid profile done before and after your cycle. This will give you a better idea of how your body is actually handling these compunds and whether or not you should use them in the future.