Final answer:
The use of Primidone for essential tremor can precipitate Parkinson's disease.
Step-by-step explanation:
The use of Primidone for essential tremor can precipitate Parkinson's disease. Parkinson's disease is a degenerative disorder of the central nervous system that causes symptoms such as tremors, slowed movement, speech changes, balance and posture problems, and rigid muscles. Loss of dopamine neurons in the substantia nigra, a midbrain structure that regulates movement, leads to the development of Parkinson's disease.