Testosterone is a hormone that is vital for proper libido function, it is a regulator of cognitive and physical energy, it serves to regulate the population of thromboxane A2 receptors on megakaryocytes and platelets (and hence platelet aggregation in humans), and it is critical for proper function of mental and psychological processes, as well as a myriad of other crucial physiological functions – so many, in fact, that to cover all of these functions would require a completely separate article. However, the majority of these functions have already been discussed throughout this article, and the absolute importance of Testosterone in every cycle for the purpose of the upkeep of these proper physiological functions should be of no surprise to the reader at this point. Because a certain anabolic steroid is ‘better’ or ‘stronger’ than Testosterone in one or two select areas (namely anabolic tissue increases, which is what every individual overemphasizes), and that it could possibly be more convenient to administer (such as oral-only cycles), absolutely does not mean that it is better than Testosterone in every single aspect and function. The majority of anabolic steroid analogues either do nothing at all or falls very short in providing proper regulation to many of those physiological functions that Testosterone is responsible for regulating and governing. There are in fact a plethora of other anabolic steroid variants that can and do also serve to in fact mitigate (hamper or disable) those functions.
Not only that, but in most cases a registered doctor will prescribe a drug to see if it helps the issue in question - and re-assess in a number of days/weeks/months. This is common practice of modern-day medicine.
Proviron at the regular dose of 50mg/day will not cause him harm - and if it works, great - if not, then something else may be needed. There is nothing wrong with people using a drug that has little to no adverse side effects to gain a benefit in one area or another - for example Viagra is a drug. This is commonly used for recreational purposes as well as treating ED.
Proviron is just as 'safe' IMO - and as AAS users here - the advice to use this Steroid to increase libido is no stretch of morality - nor is it dangerous or reckless in anyway.