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Clinician-rated scale to evaluate drug-induced Parkinsonism (EPS).
1. Gait (Normal = 0, Extreme stiffness = 4)
2. Arm Dropping (Smooth = 0, Rigid = 4)
3. Shoulder Shaking (Relaxed = 0, Rigid = 4)
4. Elbow Rigidity (Smooth = 0, Cogwheeling = 4)
5. Wrist Rigidity (Smooth = 0, Cogwheeling = 4)
6. Head Rotation (Smooth = 0, Rigid = 4)
7. Glabella Tap (Blinking stops = 0, Persistent = 4)
8. Tremor (Scale of severity 0-4)
9. Salivation (Normal = 0, Severe/Open mouth = 4)
10. Akathisia (Normal = 0, Constant pacing = 4)
© OpiCalc Motor Research
Simpson GM. (1970)
Verified
Last Review: 2026
Last Comprehensive Review: 2026