摘要:
A dosage form is disclosed that comprises means inside the dosage form for providing a substantially drug-free interval before the dosage form delivers a drug from inside the dosage form. The dosage form in an embodiment comprises a drug on the exterior of the dosage form, which drug is available for immediate delivery.
摘要:
A dosage form comprising (1) an immediately available dose of a beneficial drug followed by a timed delayed dose of drug, or (2) a timed delayed dose of drug.
摘要:
A membrane capable of controlling the rate at which an agent is released from an iontophoretic delivery device is provided. The membrane inhibits agent release from the delivery device when no electrical current is flowing and yet provides minimal impedance to electrically-assisted agent delivery. The membrane is useful both as a control membrane in an iontophoretic agent delivery device and as a test membrane for testing the performance characteristics of an iontophoretic agent delivery device in vitro.
摘要:
A dosage form is disclosed that comprises means inside the dosage form for providing a substantially drug-free interval before the dosage form delivers a drug from inside the dosage form. The dosage form in an embodiment comprises a drug on the exterior of the dosage form, which drug is available for immediate delivery.
摘要:
A dispenser for use in a fluid environment which is capable of delivery of a plurality of discrete drug-containing units in any desired delivery pattern or profile.
摘要:
A drug formulation chamber for an intravenous administration set is provided. The intravenous administration set includes a container of an IV fluid, a drip chamber, a drug formulation chamber, and an adapter-needle assembly. The drug formulation chamber has a fluid inlet and a fluid outlet for maintaining a flow of IV fluid through the chamber. A portion of the chamber wall is comprised of a window material which allows the drug to diffuse therethrough but which prevents convective loss of the IV fluid. A flow distributor is provided within the chamber for distributing the flow of IV fluid along the interior surface of the window. A transdermal-type drug delivery device is adhered to the exterior surface of the window. Drug is delivered by the delivery device through the window and into the flowing IV fluid. The device delivers drug into the IV fluid at a rate that is independent of the flow rate of IV fluid through the formulation chamber. The rate of drug delivery from the device into the IV fluid is controlled by either the window itself or by a membrane layer in the drug delivery device. A plurality of drug delivery devices may be adhered to the window to deliver a plurality of drugs or to deliver a single drug at a higher dosage rate. A similar window may be placed in an IV bag to deliver a drug into the IV fluid therein.
摘要:
A dispenser for use in a fluid environment which is capable of delivery of a plurality of discrete drug-containing units in any desired delivery pattern or profile.
摘要:
A drug formulation chamber for an intravenous administration set is provided. The intravenous administration set includes a container of an IV fluid, a drip chamber, a drug formulation chamber, and an adapter-needle assembly. The drug formulation chamber houses a diffusional or an osmotically driven drug delivery device. The osmotically driven delivery device has a semipermeable, microporous or diffusional wall which surrounds a compartment containing the drug. Drug is delivered through an orifice in the semipermeable/microporous wall or through the diffusional wall itself, into the IV fluid. The device delivers drug into the IV fluid at a rate that is independent of the flow rate of IV fluid through the formulation chamber. The rate of drug delivery is controlled by variably adjusting the surface area of the semipermeable/microporous/diffusional wall that is exposed to the IV fluid flowing through the drug formulation chamber.