Embodiments of the invention generally provide pharmaceutical drug compositions, methods of preparing oral drug compositions, such as extended release dosage compositions, and methods for treating antidepressant or smoking cessation. In one aspect, the invention provides a pharmaceutical formulation...http://www.google.es/patents/US20060099262?utm_source=gb-gplus-sharePatente US20060099262 - Methods and formulations for making controlled release oral dosage form
Methods and formulations for making controlled release oral dosage form