Neurotoxin

Toxin harmful to nervous tissue

or…
Roman Empire
Human
Parkinson's Disease
Huntington's Disease
Alzheimer's Disease
Cirrhosis
Fish
Ethanol
Death
or…
Dementia
Liver
Plant
Mercury (Element)
Sarin
Scorpion
Spider
Tetanus
Reptile
or…
Vx (Nerve Agent)
Epilepsy
Lead
Dopamine
Ammonia
Cell (Biology)
Vertebrate
Amphibian
Lithium
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