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tremorine

n. A drug used in scientific research to produce tremor in animals.

Wikipedia
Tremorine

Tremorine is a drug which is used in scientific research to produce tremor in animals. This is used for the development of drugs for the treatment of Parkinson's disease, as tremor is a major symptom which is treated by anti-Parkinson's drugs. Beta blockers are also effective in counteracting the effects of tremorine.