From my tests:
P83 draws out and magnifies the raw instinctive back-to-basics physical reaction of people towards you.
If you were sexually attractive to them for example, with the proper doses, P83 will draw out their intention and they will than perform so physically, instinctively.
P83 defies logic and reasoning, at times, skipping comfort and attraction phases in game and social sets.
The amount of dosage varies from age audience, it seems that the higher amount of doses will tend to produce a bigger reaction that will defy the logic and common sense of social law.
Refer to my journal entry for this particular test on P83:Click here