The Mesterolone hormone is not estrogenic. It does not aromatize and it carries no progestin nature. As a result, the side effects of Proviron will not include any related effects such as gynecomastia or excess water retention. Such adverse effects are impossible with this steroid. This will also greatly reduce the risk of high blood pressure as high blood pressure associated with anabolic steroid use is often due to extreme water retention. In fact, Proviron should provide an anti-estrogenic effect by preventing testosterone to estrogen conversion or at least tremendously slow it down.
The disruption of blood flow to the penis vein is a major cause of weakness of penis during sexual intercourse. Although, there are other causes to the weakness in erection such as suffering from diabetes for a long period of time which must have damage the nerve system, cardiovascular disorder, prostate cancer operations, side effects of using hard drugs, multiple sclerosis, hormonal disorders, alcohol and drug abuse, emotional problems such as depression, anxiety, fear of guilt, low self-esteem ; and also old age plays importance rule in the development of weak erection in a man’s life, because weak erection occur so much in the age bracket of 40 – 65 years. This age group seems to live in total weakness of penis due to their past activity in their early age.