THPC may refer to:

• Tetrakis(hydroxymethyl)phosphonium chloride (THPC), an organophosphorus compound with industrial applications
• THPC (drug) (1-methyl-1,2,5,6-tetrahydropyridine-3-diethylcarboxamide), a simplified LSD analogue, serotonin antagonist, and hallucinogen antidote

This disambiguation page lists articles associated with the title THPC.
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