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SESK: Stuff Everyone Should Know · sesk.info/fish-psp-symptoms

What is an early sign of paralytic shellfish poisoning?

Tingling lips and tongue.

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  1. A skin rash on hands
  2. Blurry vision only
  3. Tingling of the lips and tongue ✔

Why: Tingling can begin within minutes or take one to two hours. Severe cases can cause breathing trouble, so call 911.

Huh, didn't know that: There is no antidote for PSP; severe cases need breathing support until the toxin passes.

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When is it time for a fish to go to an eye doctor? When it is having trouble sea-ing.
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References

Answer: Tingling of the lips and tongue. Tingling can begin within minutes or take one to two hours. Severe cases can cause breathing trouble, so call 911.

  1. Washington DOH Paralytic Shellfish Poisoning doh.wa.gov/community-and-environment/shellfish/recreational-shellfish/illnesses/biotoxins/paralytic-shellfish-poisoning
    Early symptoms include tingling of the lips and tongue, which may begin within minutes of eating toxic shellfish
    Checked 2026-10-10.
  2. Washington DOH Paralytic Shellfish Poisoning doh.wa.gov/community-and-environment/shellfish/recreational-shellfish/illnesses/biotoxins/paralytic-shellfish-poisoning
    If symptoms are severe, call 911
    Checked 2026-10-10.
  3. Washington DOH Paralytic Shellfish Poisoning doh.wa.gov/community-and-environment/shellfish/recreational-shellfish/illnesses/biotoxins/paralytic-shellfish-poisoning
    There is no antidote for Paralytic Shellfish Poison.
    Checked 2026-10-10.

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