149 results about "Topical drug" patented technology

The present invention relates to compositions and methods for transdermal drug delivery comprising formulating a phosphatidylcholine carrier composition containing the drug and applying the composition to the skin.

The invention describes novel formulations of nonsteroidal anti-inflammatory drugs (NSAIDs) based on complex aggregates with at least three amphipatic components suspended in a suitable, e.g. pharmaceutically acceptable, polar liquid medium. A suitably ionised NSAID is one of the two, amongst said three, components that tends to destabilise lipid membranes, the other system component with such activity being typically a surfactant. In contrast, the remaining amongst said at least three amphipatic components typically forms a stable lipid membrane on it's own. An essential characteristics of the resulting, relatively large, aggregates is an improved ability to penetrate pores, in a semi-permeable barrier, at least 30%, and often much smaller than the average diameter of the complex aggregate. This enables said aggregates to mediate NSAID transport through semi-permeable barriers including mammalian skin. As a result of the skin penetration by NSAID loaded large aggregates, the drug delivered transcutaneously with such carriers gets deeper into the tissue than the corresponding NSAID from a solution on the skin surface. This is believed to be due to the special ability of suitable large carriers to bypass the local sink of blood capillaries at the epidermal-dermal junction in the skin. The carrier-mediated delivery of locally applied NSAIDs thus allows therapy of deep tissues under the drug administration site, which is medically highly desirable.

The present invention provides a topical drug delivery system which comprises: a therapeutically effective amount of an anti-alopecia agent; at least one dermal penetration enhancer, which is a safe skin-tolerant ester sunscreen ester; and a volatile liquid. The invention also provides a method for administering at least one systemic acting anti-alopecia agent to an animal which comprises applying an effective amount of the anti-alopecia agent in the form of the drug delivery system of the present invention.

The invention provides artificial tear compositions, artificial tear-gel compositions, contact lens storage compositions, contact lens treatment compositions, ophthalmological drug vehicle compositions and topical drug vehicle compositions comprising one or more nonionic surfactants with one or more non-Newtonian viscosity enhancing excipients and one or more of a polyol and or an electrolyte and methods of their use.

Botanically derived anti-irritants for prophylactic and therapeutic treatment of adverse skin reactions from application of transdermal or topical drug delivery system, permits the effective administration of a drug from a delivery system in which the drug, of a component of the delivery system comprises a skin irritant; and the delivery systems formed thereby.

Topical gelled compositions comprising an optional drug dispersed within a polymer matrix, methods of producing the same and treatments with the complex.

Topical drug delivery formulations with optical amounts of vasodilator. Vasodilator chemicals applied topically dilate the blood vessels in the skin tissue, which have been shown to facilitate or inhibit systemic or skin tissue deposition of drug substances. The level of stimulation and/or inhibition has been found to be dependent on the concentration and the identity of the specific vasodilator chemical(s) used as well as the drug molecule(s) to be delivered. This work teaches the need to consider specific formulation requirements when dealing with vasodilator chemicals for the creation of successful delivery vehicles in the transdermal drug delivery system. These requirements for very low concentrations of vasodilators were an unexpected and a surprise finding, in contrast to the concentrations of the vasodilators typically used to elicit an increase in skin blood flow.

The invention generally concerns methods of topical drag delivery. Delivery according to the invention may be via electrotransport of compounds through the skin, for example by iontophoresis. In certain embodiments improved methods for the delivery of compounds, such as antimicrobial agents are described.

Set forth herein is a preparation of ibuprofen (2-(4-isobutylphenyl)propionic acid) in the free acid form that is suitable for topical administration. The topical ibuprofen formulation is prepared by dissolving the free acid form of ibuprofen, or preparing a homogeneous suspension of the free acid form of ibuprofen, in the presence of a pharmaceutically acceptable solvent so as to produce a topical drug formulation compatible with the penetration of 2-(4-isobutylphenyl) propionic acid through the skin tissue. Topical formulations of ibuprofen can be based on a pharmaceutically acceptable solvent such as, e.g., a pyrrolidone solvent or dimethylacetamide.

The invention is directed to topical drug vehicle platform compositions for ophthalmological and dermatological use. These compositions comprise a means to sequester tears and an ophthalmological drug. The invention is further directed to methods of treating a spectrum of ocular surface disease epitheliopathies including but not limited to dry eye in a human or mammal. The invention is further directed to contact lenses, punctum plugs, pellets or any other device used to deliver drugs to the surface of the eye, coated or infused with compositions of the invention.

An antimicrobial composition is disclosed that contains an acid-solubilized copper ammonium or copper-zinc ammonium complex that is effective against microorganisms such as nosocomial or environmental bacteria, fungi, viruses, and the like. The antimicrobial composition can be used in the preparation of a medicament for treating microbes or a microbial infection, and may contain a carrier to create a cream, soap, wash, spray, dressing, cleanser, cosmetic product, topical drug product, or other antimicrobial product.

The invention provides an external nitric acid Sertaconazole suppository, which is a suppository of different specifications made by mixing the powder of ground nitric acid Sertaconazole and melt suppository base, glycerol and Polysorbate 80. The suppository has the beneficial effects that the preparation process of the suppository is simple, the eutherapeutic and low-toxic nitric acid Sertaconazole are used as the main medicaments, a greater cure effect can be achieved by using a small amount of medicament for local application, mycotic infection is inhibited, the cure effect is good, the use is convenient, etc.

Disclosed is a topical applicated antibiotics slow release agent as a slow release injection or a slow release implantation agent, comprising slow release microspheres and menstruum. Said release microsphere comprises slow release assist materials and antibiotics, and said menstruum is a special menstruum comprising suspending agents of sodium carboxymethylcellulose, etc, with a viscosity of 100cp-3000cp(at 20-30 DEG C). Said slow release assist materials are selected from the group of EVAc, polifeprosan, PLA, PLGA, sebacic acid copolymer, albumen glue, gelatin, and etc. Said slow release implantation agent is prepared with slow release microspheres or by melt method, etc. The disclosed slow release agent can release drugs for 10 days by topical applicated or injected at a focus, decreasing whole body toxicity obviously while obtaining and sustaining effective topical drug concentration at the focus.

The present invention relates to topical drug compositions and methods for topical drug delivery which promote stability of a drug component and facilitate the penetration of the drug component into the skin of the host. The invention also relates to topical drug compositions containing a suitable vasoactive agent, such as a prostaglandin, and methods for effectively delivering said active ingredient to the host. These compositions and methods are useful for the treatment of sexual dysfunction, in both men and women. The invention also relates to methods for formulating or preparing the composition of the present invention. To minimize irritation, the composition is water based.

The present invention generally relates to transdermal drug delivery systems. More particularly, the present invention provides compositions and transdermal drug delivery systems for the treatment and/or relief of symptoms associated with carpal tunnel syndrome or tendonitis.