I tried 6 injections about a year ago. Resulted in a major increase in libido; however, the most it did as far as erection quality was concerned was to generate a major chubby. I injected it about 5 o'clock in the morning. About one hour later I felt a weird sensation or feeling of apprehensation overcome my body. By 7 0'clock, my penis started to become a bit engorged and I started to get really horny. The weird sensation began to ebb and I had a strong desire to wake my wife and initiate sex. At about the three hour mark, I had about a 60 to 70% erection and a strong desire to engage in intercourse. Unfortunately, my erection was not quite hard enough for penetration. Very frustrating.
I subsequently resorted to constriction to achieve a 90% erection and although I was able to engage in intercourse, I was never able to orgasm. The failure may partially have been a result of the constriction, but I felt it was the effects of the PT141. The partial engorgemet lasted for at least six more hours. A few months later, I started using Trimix which was significantly more successful and satisfying.
Since Trimix concentrates on the blood flow in the penis and PT141 works on the mind, it would be interesting to see how the combination of the two would work together. Now that I think about it, I would like to experiment with it. Just need to build up my courage to do it. If I do, I will definitely "publish" the results.