Multiple-units drug dose
Patent 4193985 Issued on March 18, 1980. Estimated Expiration Date: 
March 23, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 23, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2801203 3017329 3056724 3341417 3368944 3444290 3592185 3608061 3775537 3917813 InventorsAssigneeApplicationNo. 05/889269 filed on 03/23/1978US Classes:424/459, Organic coatings424/462, Containing solid synthetic polymers424/468, Sustained or differential release type424/482, Containing solid synthetic polymers424/494Cellulose derivativesExaminersPrimary: Rose, Shep K.Attorney, Agent or FirmInternational ClassesA61K 9/16 (20060101)A61K 9/50 (20060101) Foreign Application Priority Data1977-03-30 GBAbstractA controlled release multiple-units drug dose is described, which comprises a tablet or a capsule enclosing a plurality of subunits, each containing a therapeutically active agent and being enclosed in an insoluble membrane allowing for diffusion of the juices of the gastrointestinal tract, at least some of the subunits being of increased specific weight as compared with the specific weight of the active agent. | |
