A 2010 study found that when mice were given either 50 mg andrographis or sildenafil. The andrographis group performed more often than the Viagra group.
According to Ergo-Log.com
"The Thai researchers gave their mice 50 mg andrographolide per kg bodyweight. Converted to humans that would mean about 5 mg per kg bodyweight. So if you weight 80 kg you'll need at least 400 mg andrographolide a day. (To make it easier we're assuming that the chemical relatives of andrographolide all have roughly the same effect.)
The strongest Andrographis paniculata extract that we know contains about 50 percent andrographolides.
Andrographis paniculata extracts also inhibit blood clotting, by the way. [Eur J Pharmacol. 2006 Dec 28;553(1-3):39-45.] If you use anti-coagulants or produce few coagulant factors yourself you'd be wise to avoid Andrographis paniculata. "
Sources:
The combined testosterone and sildenafil effect of Andrographis ...
Food Chem Toxicol. 2010 Jul;48(7):1934-8.
Sources:
The combined testosterone and sildenafil effect of Andrographis ...
Food Chem Toxicol. 2010 Jul;48(7):1934-8.
