TREMOR

hereditary:

benign essential tremor [any age; autosomal dominant; postural or intentional and disappears at rest; not progressive; made better by alcohol and beta-blockers]

senile:

'essential senile tremor' (postural tremor)

exaggeration of physiological tremor:

delirium tremens (alcohol withdrawal)

dopamine antagonism or deficiency:

tardive dyskinesia (psychotropic drugs with antidopaminergic effects)

parkinsonism ('pill-rolling' tremor; at rest)

flapping tremor:

renal failure

intention tremor:

cerebellar lesions

drugs (causing action tremor):

barbiturate toxicity (chronic intake)

chronic mercury poisoning ('hatter's shakes')