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Medications or Substances causing Hand tremors. Medications or substances causing Hand tremors. The following drugs, medications, substances or toxins are some of the possible causes of Hand tremors as a symptom. This list is incomplete and various other drugs or substances may cause your symptoms (see Hand tremors).
Tremors are caused by problems with the nerves supplying certain muscles. They may affect the whole body or just certain areas, as with hand tremor. Types of tremors include: 1  Drug-induced tremor (tremors caused by certain drugs). 2  Essential tremor (no known cause). 3  Familial tremor (runs in families).