It is critical to begin treatment as soon as possible after exposure. Sadly, there is no specific antidote for blue-green algae poisoning. Instead, treatment involves overnight hospitalization for intensive, supportive care.

Treatments may include: 

• Decontamination in the form of bathing, inducing vomiting, and stomach pumping 
• Cholestyramine – a medication to reduce the liver’s exposure to toxins 
• Activated charcoal – absorbs toxins in the gastrointestinal tract to prevent further exposure
• IV fluids and electrolyte supplementation
• Supplemental glucose
• Plasma and/or blood transfusions
• Liver protectants
• Anti-seizure medications  
• Muscle relaxants
• Oxygen supplementation
• Mechanical ventilation