Scombrotoxic fish poisoning history and symptoms

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

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Overview

The most common symptoms are; rash, diarrhea, flushing, sweating, headache, vomiting.

History and Symptoms

Symptoms begin within 2 minutes to 2 hours after eating the fish.

Burning or swelling of the mouth, abdominal pain, or a metallic taste may also occur. The majority of patients have mild symptoms that resolve within a few hours.

Symptoms consist of skin flushing, throbbing headache, oral burning, abdominal cramps, nausea, diarrhea, palpitations, a sense of unease, and, rarely, collapse or loss of vision. Symptoms usually occur within 10–30 minutes of ingesting the fish and generally are self-limited. Physical signs may include a diffuse blanching erythema, tachycardia, wheezing, and hypotension or hypertension. People with asthma are more vulnerable to respiratory problems such as wheezing or bronchospasms. Symptoms of poisoning can show within just minutes, and up to two hours, following consumption of a spoiled dish. Symptoms usually last for approximately four to six hours and rarely exceed one to two days.

Initial Symptoms

The first signs of poisoning suggest an allergic reaction with the following symptoms:

• facial flushing/sweating
• burning-peppery taste sensations in the mouth and throat
• dizziness
• nausea
• headache
• tachycardia
• cold like symptoms

Additional Symptoms

The above symptoms can advance to the following:

• facial rash
• torso or body rash. The rash associated with scombroid poisoning is a form of urticaria, but most commonly does not include wheals (patchy areas of skin-swelling also known as hives) that may be seen in true allergies.
• edema (this is generalized if it occurs at all)
• short-term diarrhea
• abdominal cramps.

Severe Symptoms

In the worst cases, the poisoning may cause:

• blurred vision
• respiratory stress
• swelling of the tongue

References

http://www.cdc.gov/ncidod/dbmd/diseaseinfo/marinetoxins_g.htm