A human neurological disease caused by the ingestion of toxic marine shellfish (filter-feeding bivalves) as well as other harvested seafood. PSP has been reported from cold and warm seas (Steidinger, 1993 ). Shellfish can accumulate and store large quantities of bloom or red tide dinoflagellate toxins without apparent harm to themselves (Steidinger and Baden, 1984). Symptoms include: tingling sensation around lips gradually spreading to face and neck; prickly sensation in fingertips and toes; headache, dizziness, nausea, vomiting, diarrhea. In extreme cases, muscular paralysis occurs resulting in death from respiratory paralysis (Hallegraeff, 1995).

PSP toxins:
C1, C2, C3, C4
gonyautoxins: GTX1, GTX2, GTX3, GTX4, GTX5, GTX6
neosaxitoxins (neoSTX)
saxitoxins (STX)

Alternative form for Paralytic Shellfish Poisoning : PSP.