Substances that can cause tremor

[The Godfather]

Beta-adrenergic agonists (Albuterol / Salbutamol - asthma inhalers)

Epinephrine (Adrenaline)

Valproic acid (Depakene)

Hypoglycemic agents (or hypoglycemia)

Metoclopramide (Reglan) - a potent dopamine antagonist

Amphetamines

Caffeine (in coffee, cola drinks, chocolate, cocoa, yerba maté, guarana)

Carbamazepine (Tegretol)

Fluoxetine (Prozac)

Haloperidol (Haldol)

Lithium

Methylphenidate (Ritalin) (like Prozac)

Pseudoephedrine (OTC cold medication)

Terbutaline sulfate (Brethine)

Theophylline (in tea)

Thyroid hormones

Tricyclic antidepressants

Alcohol (chronic)

Amiodarone (Cordarone)

Calcitonin (Salmonine Miacalcin)

Cocaine

Cyclosporine (Sandimmune)

Dopamine (Intropin)

Procainamide (Pronestyl)

Trifluoperazine (Stelazine)

Phenylpropanolamine