1750results about "Osmotic delivery" patented technology

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.

A method and apparatus for treatment of cardiac and renal diseases associated with the elevated sympathetic renal nerve activity by implanting a device to block the renal nerve signals to and from the kidney. The device can be a drug pump or a drug eluding implant for targeted delivery of a nerve-blocking agent to the periarterial space of the renal artery.

Oxycodone formulations are provided which produce substantially flat in vivo steady state plasma profiles. Tolerance levels associated with such profiles and tolerance levels associated with biphasic profiles are shown not to be statistically different. The substantially flat in vivo steady state plasma profiles are produced by dosage forms having substantially zero order in vitro release profiles. Such release profiles produce low single dose in vivo C_max levels which can reduce the probability of adverse side effects.

Apparatus for drug administration is provided, including an ingestible capsule, which includes a drug, stored by the capsule, and an environmentally-sensitive mechanism, adapted to change a state thereof responsively to a disposition of the capsule within a gastrointestinal (GI) tract of a subject. The capsule further includes first and second electrodes, and a control component, adapted to facilitate passage of the drug, in response to a change of state of the environmentally-sensitive mechanism, through an epithelial layer of the GI tract by driving the first and second electrodes to apply a series of pulses at a current of less than about 5 mA, at a frequency of between about 12 Hz and about 24 Hz, and with a pulse duration of between about 0.5 milliseconds and about 3 milliseconds.

This invention relates to a delivery device of the bleeding hole type, where a primary drive fluid, e.g. silicon oil, is used to expel a secondary fluid, e.g. a drug, contained in a reservoir. To provide a desired drug flow rate, the primary fluid is forced from a first reservoir through a flow restrictor into a second reservoir displacing a portion of the drug reservoir, thereby expelling the drug from its reservoir. The idea is to provide a drive fluid outlet, i.e. a flow restrictor inlet, which protrudes into the first reservoir. By this arrangement the amount of particles and air-bubbles entering the narrow flow restrictor will be reduced. The reduction is achieved because particles and air-bubbles will normally concentrate in the top or bottom of the reservoir, whereas the protrusion will primarily connect to the centre of the first reservoir.

Sustained release dosage forms for twice daily oral dosing to a human patient for providing relief from pain are provided. The sustained release dosage form comprises an immediate release component and a sustained release component, wherein the immediate release component and the sustained release component collectively contain a therapeutically effective amount of an opioid analgesic and a therapeutically effective amount of nonopioid analgesic. In a preferred embodiment, the nonopioid analgesic is acetaminophen and the opioid analgesic is hydrocodone and pharmaceutically acceptable salts thereof, and in preferred embodiments, the pharmaceutically acceptable salt is bitartrate. The dosage forms produce plasma profiles in a patient characterized by a Cmax for hydrocodone of between about 0.6 ng/mL/mg to about 1.4 ng/mL/mg and an AUC for hydrocodone of between about 9.1 ng*hr/mL/mg to about 19.9 ng*hr/mL/mg (per mg hydrocodone bitartrate administered) and a Cmax for acetaminophen of between about 2.8 ng/mL/mg and 7.9 ng/mL/mg and an AUC for acetaminophen of between about 28.6 ng*hr/mL/mg and about 59.1 ng*hr/mL/mg (per mg acetaminophen administered) after a single dose.

A dosage form is disclosed comprising a drug formulation that self-emulsifies in said dosage form.

An osmotic pump having a minimally compliant, volume-efficient piston positioned within a capsule is provided. The capsule has an interior surface, a beneficial agent, and an osmotic agent. The piston is movable with respect to an interior surface of the capsule, and defines a movable seal with the interior surface of the capsule. The movable seal separates the osmotic agent from the beneficial agent. The piston has a length-to-total-diameter ratio of about 1.1:1 and a core-diameter-to-total-diameter ratio of about 0.9:1. The piston enables greater beneficial agent and/or osmotic agent payload without increasing the size of the capsule. The osmotic agent imbibes liquid from a surrounding environment through a semipermeable body to cause the piston to move and, in turn, cause delivery of the beneficial agent from the capsule.

Osmotic delivery system semipermeable body assemblies that control the delivery rate of a beneficial agent from an osmotic delivery system incorporating one of the semipermeable body assemblies are provided. A semipermeable body assembly or plug includes a semipermeable body which is positionable in an opening of an osmotic delivery system. The semipermeable body has a hollow interior portion having a size selected to obtain a predetermined liquid permeation rate through the semipermeable body. Because the beneficial agent in the osmotic delivery system is delivered at substantially the same rate, the osmotic agent imbibes liquid which has permeated through the plug from a surrounding environment, and the liquid permeation rate through the plug controls the delivery rate of the beneficial agent from the osmotic delivery system. The liquid permeation rate through a semipermeable body may be varied to control the delivery rate of beneficial agent from an osmotic delivery system by changing the thickness of the semipermeable body or by changing an amount of surface area of the semipermeable body that is exposed to liquid when the osmotic delivery system is located in a liquid environment of use.

The invention disclosed pertains to a dosage form comprising an agent formulation comprising drug and pharmaceutical carrier of cooperating particle size and means for dispensing the agent formulation from the dosage form.

An in vivo examining device and method are described. The in vivo examining device has two operational phases; an initial phase in which the device is of initial dimensions and a final phase in which the device is of final dimensions. In the initial phase the device can pass freely through a normally configured body lumen whereas it may not be able to pass freely through an abnormally configured lumen. In the final phase the device can pass freely through a body lumen even if it is abnormally configured.

A drug delivery device can, in whole or in part, be formed by co-extruding a drug core and an outer tube. The outer tube may be permeable, semi-permeable, or impermeable to the drug. The drug core may include a polymer matrix which does not significantly affect the release rate of the drug. The outer tube, the polymer matrix of the drug core, or both may be bioerodible. The co-extruded product can be segmented into drug delivery devices. The devices may be left uncoated so that their respective ends are open, or the devices may be coated with, for example, a layer that is permeable to the drug, semi-permeable to the drug, or bioerodible.

A dosage form comprising a gelatin capsule formed with a composite wall and containing a liquid, active agent formulation where the wall comprises a barrier layer formed over the external surface of the gelatin capsule, an expandable layer formed over the barrier layer and a semipermeable layer formed over the expandable layer is described. The dosage forms and methods provide for the conversion of standard gelatin, liquid formulation capsules into controlled, release dosage forms that permit the controlled release of the active agent into the environment of use over time.

A dosage form that provides a controlled release of at least two different active agents is provided. Particular embodiments include a dosage form that provides therapeutically effective levels of a first active agent and a second active agent in a mammal for an extended period of time following oral administration. An osmotic device containing a bi-layered core is provided. The osmotic device provides a dual controlled release of both drugs from the core. The layers of the core are in stacked, substantially concentric or substantially eccentric arrangement.

This invention relates to stable non-aqueous single phase viscous vehicles and to formulations utilizing such vehicles. The formulations comprise at least one beneficial agent uniformly suspended in the vehicle. The formulation is capable of being stored at temperatures ranging from cold to body temperature for long periods of time. The formulations are capable of being uniformly delivered from drug delivery systems at an exit shear rate of between about 1 to 1×10⁻⁷ reciprocal second.

An osmotic delivery system for controlled delivery of a beneficial agent includes an implantable capsule containing a beneficial agent and an osmotic engine that swells on contact with water, thereby causing the release of the beneficial agent over time. The osmotic delivery system has a membrane material that allows a controlled amount of fluid to enter from an exterior of the capsule, while preventing the compositions within the capsule from passing out of the capsule. The osmotic delivery system is designed to meet at least the operating pressures of 1000 psi. The membrane material is cast, calendered or extruded followed by machining (i.e., die-cutting, stamping or otherwise cutting to shape) to provide a uniform nonribbed membrane material. The capsule also includes a membrane material-retaining means that is positioned at a fluid uptake end to retain the membrane material within the capsule, even under periods of high pressure.

Provided are immediate or prolonged administration of certain potassium ATP (K_ATP) channel openers to a subject to achieve novel pharmacodynamic, pharmacokinetic, therapeutic, physiological, metabolic and compositional outcomes in the treatment of diseases or conditions involving K_ATP channels. Also provided are pharmaceutical formulations, methods of administration and dosing of K_ATP channel openers that achieve these outcomes and reduce the incidence of adverse effects in treated individuals. Further provided are method of co-administering K_ATP channel openers with other drugs to treat diseases of humans and animals.

The present invention is related to methods for lowering peroxide levels in sucrose acetate isobutyrate formulations and to composition used in and formed by such methods.

The present invention relates to apparatus and methods for preventing backflow into a beneficial agent dispensing osmotic delivery system.