Don't know where it's made but you can get it in Hong Kong at Men's Health Solutions Centre.
Link:
http://www.mhs.hk/en/home/index.htm
I agree that Viagra is great, but I've been using it for more than 5 years and it's definitely losing some of its potency
I went to MHS about a year ago and, after an examination, had a shot of Trimix. Can't remember the dosage but the doc said it was less than normal, just to try it.
After 15 minutes I had the biggest, strongest erection I've had since I was 25. Man I could have fucked a gorilla - and that was without any sexual stimulation.
It was supposed to last an hour, but after 3 hours, I was still rock-hard. At this point the doc said he didn't think I had ED and that's why I was having this reaction.
But he'd never warned me of the consequences. They gave me some pills to lose the erection but they didn't work. I had to leave when they closed up, another
2 hours later. I was still rock hard and it was getting painful. Eventually, I had that erection for 7 hours and I never went back to MHS.
But I still remember that erection and was thinking about trying it again - but this time with a much smaller dosage. But I don't know if MHS will treat me again.
Btw, don't be put off by the injection. It goes in at the base of the penis and was totally painless. They have a spring-loaded injector so you don't have to stick the
needle in yourself. You just press a button. I'm sure I could do it myself.