Hmmm. Don't know what to make of this. There is a testosterone booster out there that may have triggered a psychotic episode. http://www.news-medical.net/news/20121020/Psychotic-reactions-associated-with-natural-testosterone-booster-products
The ingredient list is:
Tribulus terrestris (main ingredient), Eurycoma longifolia , Avena sativa , Erythroxylum catuaba , Herba epimedii , Salvia sclarea , and bioperine
I know the bioperine really increase uptake usually.
Hard to know with one case. But they did say that "according to other online sources, its long-term high-dosage ingestion may well be accompanied by rage, anger, mental confusion, and chaos."