A method and apparatus for dispensing drugs, wherein a patient's order of one or more prescriptions is automatically filled. Various drugs are stored in three or more filler lines. A vial size is assigned to each line. When a prescription is filled, it is automatically assigned to a line in view of the...http://www.google.com/patents/US5208762?utm_source=gb-gplus-sharePatent US5208762 - Automated prescription vial filling system