Physiologic tremor
Essential tremor / familial tremor
Psychogenic tremor [abrupt onset, spontaneous remission, changing tremor characteristics, and extinction with distraction.]
Parkinsonian tremor
Cerebellar tremor (from Cerebellar disease)
Dystonic tremor
Drug-induced tremor: bronchodilators, caffeine, steroids, lithium, sympathomimetics, antipsychotics, metoclopramide, tricyclics, valproic acid
Drug withdrawal (alcohol)
Metabolic induced-tremor
Orthostatic tremor
Wilson’s disease
Tardive dyskinesia
Anxiety, Panic disorder
Serotonin syndrome
Midbrain stroke
Multiple sclerosis
Hepatic encephalopathy
Carcinoid syndrome
Hyperthyroidism
Pheochromocytoma
**Essential tremors show improvement with alcohol. TX: Propranolol or Primidone
**PD “tremor is typically asymmetric, occurs at rest, and becomes less prominent with voluntary movement.”
**Essential tremor is typically a “postural tremor; symmetric; involves hands, wrists, lower extremities, head, or voice; family history; and improves with alcohol”
**Psychogenic tremor = starts abruptly, goes away spontaneously, changing tremor characteristics, and extinction with distraction.
Further Reading
Am Fam Physician. 2011 Mar 15;83(6):697-702. http://www.aafp.org/afp/2011/0315/p697.html