Testosterone esters were synthesized for the first time in 1936, and were found to have greatly improved potency relative to testosterone.  Among the esters synthesized, testosterone propionate was the most potent, and for this reason, was selected for further development, subsequently being marketed.  Testosterone propionate was introduced in 1937 by Schering AG in Germany under the brand name Testoviron.  It was the first ester of testosterone to be introduced,  and was the major form of testosterone used medically before 1960.  In the 1950s, longer-acting testosterone esters like testosterone enanthate and testosterone cypionate were introduced and superseded testosterone propionate.  Although rarely used nowadays due to its short duration,  testosterone propionate remains medically available. 
Androgens stimulate protein synthesis in muscle, and they usually do not affect the overall synthesis in the organism. Androgens stimulate the production of red blood cells by synthesis and secretion stimulation of erythropoietin, direct stimulation of hematopoiesis in bone, marrow stimulation and inclusion of iron ions in the red blood cells. Although the use of androgens causes a significant increase in hematocrit and hemoglobin levels. At the same time in healthy men, when testosterone enanthate is applied in amounts of 200 mg per week, during 16 weeks cycle, the significant increase in the number of red blood cells and the increase in the hematocrit and hemoglobin were observed.
For the Testosterone Replacement Therapy candidate generally dosing will fall in the 100mg-200mg per week range and rarely surpassing this amount. However, as frequent injections are necessary most physicians will generally opt for larger ester forms, most commonly Testosterone-Cypionate so the patient only has to inject once per week.
For the performance enhancer the dosing will be much larger and the varying levels will be much wider too but he must necessarily inject frequently as discussed if he is going to maintain stability. Generally the minimal dose when supplementing for performance purposes will be 100mg every other day with 200mg every other day being as high as most will ever go. Yes, you an absolutely take more, there is no set in stone amount but understand such high-end doses can open up the doors to side-effects that you may have wished to remain shut. In elite level competitive sports, especially in elite level bodybuilding it is not uncommon to see doses surpass a 2,000mg per week range but this can be very harsh and there is simply no way such a dosing could ever be recommended in a responsible manner.
As with all cycles, as natural testosterone production will be suppressed, once use is discontinued and responsible use will include breaks Post Cycle Therapy (PCT) is a must in order to aid and speed up the recovery process. This is where Testosterone-Propionate has a bit of advantage over many other forms of testosterone; as a small ester that clears very quickly if your cycle ends with Testosterone-Propionate and there is no other long ester gear present in your system your PCT plan can start almost immediately. Remember, the sooner we start our PCT the better off we’ll be and such rapid PCT application cannot be accomplished with long ester based testosterone. If your cycle ends with Testosterone-Propionate you could reasonably wait 3 days before PCT therapy begins; if it ends with large ester gear you will need to wait approximately 2 weeks.