摘要:
Mucosal adhesive devices are provided for use in the oral cavity for therapy against infections. The devices are dosage units which comprise a combination of antimicrobial agents such as antifungal agents and anti-inflammatory agents, optionally also a local anesthetic. The dosage units yield a gradual and relatively constant release of the pharmaceuticals over at least a 12-hour period.
摘要:
Transdermal absorption morphinan narcotic analgesic or antagonist pharmaceutical polymer matrix dosage units have been developed which comprise a backing layer and an adjoining layer of a solid polymer matrix in which minimum effective doses of morphinan narcotic analgesic or antagonist pharmaceuticals are microdispersed and transdermally supplied. A presently preferred analgesic is hydromoprhone. The dosage units use a biologically acceptable adhesive polymer means to adhere the dosage units to the subject to be treated. The polymer matrix has dispersed one or more skin permeation enhancers. The invention also provides a process for transdermal absorption of said pharmaceuticals in at least minimum dosage amounts.
摘要:
Transdermal fertility-controlling absorption polymer matrix dosage units have been developed which comprise a backing layer, an adjoining layer of a solid polymer matrix in which minimum effective daily doses of an estrogen and a progestin are microdispersed and released for transdermal absorption. Presently preferred is use of the natural estrogen, 17-beta-estradiol, and of the progestin, levonorgestrel. The units have a biologically acceptable adhesive polymer layer. The polymer matrix as well as the adhesive layer can have dispersed one or more skin permeation enhancers. Dosage units are provided which transdermally deliver at least minimum daily doses of the estrogen and progestin for multiple days, such as for one week. The invention also provides a process of fertility control using the novel polymer matrix dosage units for the first three weeks of consecutive menstrual cycles of the subject desiring fertility control.
摘要:
The present invention is concerned with a pharmaceutical delivery device comprising a biologically acceptable silicone polymer matrix having microsealed compartments of 10-200 microns throughout, wherein the microsealed compartments contain a pharmaceutical in a hydrophilic solvent system. The biologically acceptable silicone polymer matrix is formed by in situ cross linking of a liquid, biologically acceptable silicone polymer in an emulsion of pharmaceutical in the hydrophilic solvent system and liquid biologically acceptable silicone polymer. The biologically acceptable silicone polymer matrix is placed in a sealed or unsealed biologically acceptable polymer container. The rate of release of pharmaceutical is controlled by altering the solubility characteristics of the hydrophilic solvent system and/or the biologically acceptable polymer matrix, the rate of release being independent of time when the ratio of the partition coefficient of the pharmaceutical between the hydrophilic solvent system and biologically acceptable silicone polymer matrix to the solubility of the pharmaceutical in the hydrophilic solvent system is between 1 and 10.sup.-.sup.4 ml/mcg.
摘要:
A transdermal contraceptive delivery system (TCDS) for fertility control in women is described comprising a backing layer, an adjoining layer of a solid absorption adhesive polymer matrix in which minimum effective daily doses of an estrogen and a progestin are dispersed and released for transdermal absorption. Presently preferred is use of the natural estrogen, 17-beta-estradiol, and the synthetic progestin, levonorgestrel. Along with these two steroidal contraceptive agents, a combination of several chemical skin permeation enhancing agents, blended at specific weight ratios, are homogeneously dispersed in the adhesive polymer matrix. The invention also provides a process of fertility control utilizing the transdermal contraceptive delivery system.
摘要:
Provided are disposable dosage units for use in iontophoresis-facilitated transdermal delivery which have hydrophilic polymer first and second layers, the first layer having ionic resin particles dispersed therein and the second layer having an ionized pharmaceutical contained. The second layer having on its surface a thin fabric layer bearing an adhesive layer. The polymer first and second layers are separated by a permselective membrane. Also provided are related devices and processes using the novel disposable dosage units.
摘要:
The present invention is concerned with a pharmaceutical delivery device comprising a biologically acceptable silicone polymer matrix having microsealed compartments of 10-200 microns throughout, wherein the microsealed compartments contain a pharmaceutical in a hydrophilic solvent system. The biologically acceptable silicone polymer matrix is formed by in situ cross linking of a liquid, biologically acceptable silicone polymer in an emulsion of pharmaceutical in the hydrophilic solvent system and liquid biologically acceptable silicone polymer. The biologically acceptable silicone polymer matrix is placed in a sealed or unsealed biologically acceptable polymer container. The rate of release of pharmaceutical is controlled by altering the solubility characteristics of the hydrophilic solvent system and/or the biologically acceptable polymer matrix, the rate of release being independent of time when the ratio of the partition coefficient of the pharmaceutical between the hydrophilic solvent system and biologically acceptable silicone polymer matrix to the solubility of the pharmaceutical in the hydrophilic solvent system is between 1 and 10.sup..sup.-4 ml/mcg.
摘要:
Transdermal absorption dosage units have been developed which comprise a backing layer and an adjoining polyacrylate adhesive polymer layer in which at least minimum effective daily doses of one or more steroidal hormones are microdispersed. Presently preferred is use of the natural estrogen, 17-beta-estradiol, or ethinyl estradiol or combinations thereof together with an amount of a natural progestogen or a progestin to minimize any potential side effects. The units use bioacceptable polyacrylate adhesive polymer in making the adhesive polymer layer which has a minor percentage of vinyl acetate polymer units effective in providing improved transdermal absorption of the microdispersed steroidal hormone. An effective amount of vinyl acetate units up to about 5 percent has been found suitable. The invention also provides a process for transdermal administration of one or more steroidal hormones using the novel dosage units provided.
摘要:
Transdermal fertility-controlling absorption polymer matrix dosage units have been developed which comprise a backing layer, an adjoining layer of a solid polymer matrix in which minimum effective daily doses of an estrogen and a progestin are microdispersed and released for transdermal absorption. Presently preferred is use of the natural estrogen, 17-beta-estradiol, and of the progestin, levonorgestrel. The units have a biologically acceptable adhesive polymer layer. The polymer matrix as well as the adhesive layer can have dispersed one or more skin permeation enhancers. Dosage units are provided which transdermally deliver at least minimum daily doses of the estrogen and progestin for multiple days, such as for one week. The invention also provides a process of fertility control using the novel polymer matrix dosage units for the first three weeks of consecutive menstrual cycles of the subject desiring fertility control.
摘要:
Provided are reservoir electrodes for iontotherapeutic devices which have two chambers; the first chamber is electrically connected to the iontotherapeutic device and is designed to contain electrolytic solution and the second chamber has ionized pharmaceutical dissolved in electrolytic solution. The two chambers are separated by a permselective membrane. The first chamber has means to inhibit increase in ionic content caused by the operation of the iontotherapeutic device. Also provided are unit dose forms adapted for insertion into the reservoir electrodes. The dose unit forms are made of crosslinked polymer and contain ionizable pharmaceutical which is released for absorption during operation of the iontotherapeutic process. Also provided are novel iontotherapeutic devices and processes.