I don't think Ultimate Orange had anything spiking it, it was just way overdosed. I found a medical study of over the counter ephedra products, and it was something like 2 - 2.5x the labeled dosage which was already high. I remember buying it in the 90's, and it was just like someone poured a ton of open Diet Fuel capsules into Tang.
Edit -
The Ultimate Orange label recipe -
Ultimate Orange -
Carbohydrates - 16g
Protein - 25g
MaHuang shooting for a standardization of 8% - 415mg (about 33mg of Ephedrine)
Caffeine was around 300mg in the form of Gurana.
----------------------
Journal of Analytical Toxicology, Vol. 28, April 2004
Concentrations of Ephedra Alkaloids and Caffeine in
Commercial Dietary Supplements
That's the study I mentioned.