concentrating, difficulty
confusion
convulsion
delirium
dementia
dysphagia
fasciculations
gait, abnormal
hallucinations
headache
incoordination
inebriation
irritability
lethargy
memory loss
mood disturbance
neuropathy
opisthotonos
paralysis
paresthesia
rigidity
speech, impaired
stiff neck
stupor and coma
tremor
weakness