Writer/director David E. Durston took LSD under a doctor's supervision in order to research the subject of hallucinogenic drugs for this film.
According to writer/director David E. Durston, Hisako Tsukuba didn't speak any English and hence had to say all her English dialogue phonetically.
Writer/director David E. Durston had to double Harvey J. Goldenberg for the chase scenes at the movie's conclusion because Goldenberg ran too slow and Peter Ratray kept outrunning him. These scenes were filmed in long shot in order to successfully pass Durston off as Goldenberg.
This movie was made under the title "The Love Drug". However, said title had to be changed when newspapers refused to run ads for the picture with that particular title.
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