Patent ID: 8722733

Claim:
A method of treating a disease in a patient comprising administering to a patient in need of such treatment a therapeutically effective amount of a compound crystalline (2R)-2-phenylcarbonyloxypropyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoate mesylate, hydrate, which exhibits characteristic scattering angles (2θ) at least at 6.0°±0.2°, 9.1°±0.2°, 14.6°±0.2°, 16.1°±0.2°, 16.6°±0.2°, and 18.5°±0.2° in an X-ray powder diffraction pattern measured using Cu—K α radiation, wherein the disease is chosen from Parkinson's disease, depression, attention deficit disorder, schizophrenia, manic depression, cognitive impairment disorders, restless legs syndrome, periodic limb movement disorders, tardive dyskinesia, Huntington's disease, Tourette's syndrome, hypertension, addictive disorders, congestive heart failure, and excessive daytime sleepiness.