9. Subjects who are taking or had been taking any drug within the past 30 days that is well known to promote tremors, including: amiodarone, beta-agonist inhalers (such as albuterol), cyclosporine, lithium, metoclopramide, theophylline, or valproate,or taking within the past 6 months the dopamine blocking agents (antipsychotics) (note, other such medication may be considered on a case-by-case basis at the discretion of the investigator);