“Interestingly, ginseng also inhibited the appearance of the recurrent phenomenon (reappearance of the sensitized state was observed at the time of readministration of methamphetamine and cocaine even after a 30-day discontinuation of drug administration) of the effect of methamphetamine and cocaine.”
“On the other hand, behavior sensitization (reverse tolerance to their ambulation-accelerating effect) to morphine, methamphetamine and cocaine was also inhibited by ginseng.”