摘要:
The present invention provides a multi-release oral drug delivery system that initiates drug release following an initial drug-free release interval, after administration to a subject, and a second drug-free release period before release of another dose of drug. The system has (1) inner compartments enclosed within a semipermeable membrane, and (2) a drug coating on the exterior of the semipermeable membrane surrounded by a microporous membrane, which microporous membrane is permeable to fluid and drug. The drug coating is released after the initial drug-free release interval. An inner compartment drug is released after a second drug-free release interval provided by a drug-free inner compartment.
摘要:
Disclosed are controlled release dosage forms and related methods including: (a) a micronized or liquid base form of a drug; (b) either a pharmaceutically acceptable salt form of the drug or starting materials that are capable of reacting to form a pharmaceutically acceptable salt form of the drug; (c) an upper gastrointestinal system pharmaceutically acceptable salt form releasing structure; and (d) a colonic system base form releasing structure.
摘要:
A composition comprising a polymer for providing a polymer membrane, at least one pharmaceutically acceptable surfactant compatible with the polymer, and a single solvent for both the polymer and the surfactant. The composition is particularly apt for coating pharmaceutical dosage forms.
摘要:
A composition comprising a polymer for providing a polymer membrane, at least one pharmaceutically acceptable surfactant compatible with the polymer, and a single solvent for both the polymer and the surfactant. The composition is particularly apt for coating pharmaceutical dosage forms.
摘要:
Disclosed are osmotic dosage forms including an osmotic core; a semi¬ permeable membrane that surrounds the osmotic core and comprises a blend of a cellulose acetate polymer and an acrylate copolymer; and an exit formed through the semi-permeable membrane. Also disclosed are methods of making and administering such dosage forms.
摘要:
A dosage form comprising a composition comprising a drug surrounded by an interior and an exterior wall with an exit for administering the drug to a patient; and a method of using the dosage form are disclosed for an indicated therapy.
摘要:
Disclosed are oral osmotic dosage forms and methods wherein a semipermeable membrane of the oral osmotic dosage form includes from about 23 wt% to about 50 wt% of a flux enhancer and from about 0.01 wt% to about 5 wt% of antioxidant, based on the total dry weight of the semi-permeable membrane. Such compositions provide high flux membranes with improved mechanical and transport stability during storage on the shelf.
摘要:
Dosage forms and devices for enhancing controlled delivery of lowly soluble active agents including topiramate by use of a drug core composition that increases the solubility of the pharmaceutical agent are described. The present invention provides a drug core composition for delivering high doses of lowly soluble topiramate in solid oral drug delivery systems that are convenient to swallow, for once-a-day administration. The drug core composition contains topiramate, a surfactant and a carrier in ratios for optimal solubility and delivery.