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:
The present invention is directed to an active agent dosage form which is adapted for retention in the stomach and useful for the prolonged delivery of an active agent formulation to a fluid environment of use. The active agent dosage form is a polymer matrix that swells upon contact with the fluids of the stomach. A portion of the polymer matrix is surrounded by a band of insoluble material that prevents the covered portion of the polymer matrix from swelling and provides a segment of the dosage form that is of sufficient rigidity to withstand the contractions of the stomach and delay expulsion of the dosage form from the stomach until substantially all of the active agent has been dispensed.
摘要:
The present invention is directed to an active agent dosage form and methods of its fabrication which is useful for the prolonged delivery of an active agent formulation to a fluid environment of use. The active agent dosage form is a matrix that has on its surface one or more insoluble bands located in complementary grooves. The invention is also directed to articles of manufacture, methods and systems for fabricating the active agent dosage form.
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:
The present invention includes a dosage form that facilitates the controlled release of an active agent at a desired release rate or release rate profile. In each embodiment, the dosage form of the present invention includes a bi-layer membrane system and an osmotic core. The bi-layer membrane system includes a semipermeable membrane and an osmosensitive membrane and forms an internal compartment that is occupied by the osmotic core. The osmotic core of the dosage form of the present invention includes and active agent composition and a light push layer. The dosage form of the present invention additionally includes a passageway that is formed through the bi-layer membrane system and permits expulsion of the active agent composition from the dosage form during operation. The bi-layer membrane system and the osmotic core of the dosage form of the present invention are formulated and formed to provide controlled release of the active agent included in the active agent composition of the osmotic core, while simultaneously facilitating increased loading of active agent within a dosage form of given dimension and increasing the delivery efficiency of such active agent relative to prior osmotic dosage forms including a push layer.
摘要:
A dosage form comprising a composition comprising a drug surrounded by a first coat and a second coat 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:
A dosage form comprising a composition comprising a drug surrounded by a first coat and a second coat with an exit for administering the drug to a patient; and a method of using the dosage form are disclosed for an indicated therapy.