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40 results about "Pharmaceutical solvent" patented technology

Adhesive solid gel-forming formulations for dermal drug delivery

The present invention is drawn to adhesive solid gel-forming formulations, methods of drug delivery, and solidified gel layers for dermal delivery of a drug. The formulation can include a drug, a solvent vehicle, and a gelling agent. The solvent vehicle can include a volatile solvent system having one or more volatile solvent, and a non-volatile solvent system having one or more non-volatile solvent, wherein at least one non-volatile solvent is flux-enabling non-volatile solvent(s) capable of facilitating the delivery of the drug at therapeutically effective rates over a sustained period of time. The formulation can have a viscosity suitable for application to a skin surface prior to evaporation of the volatile solvents system. When applied to the skin, the formulation can form a solidified gel layer after at least a portion of the volatile solvent system is evaporated. The solidified gel layer is can be removed by either peeling or washing using a designated solvent or solvents.
Owner:NUVO RES

Non-addictive analgesic sustained-release drug delivery system and preparation method thereof

ActiveUS20150359891A1Improve drug deliveryExcellent mutual solubilizationBiocideNervous disorderEthyl lactateBENZYL ALCOHOL/WATER
A non-addictive analgesic sustained-release drug delivery system, comprising: (1) a narcotic analgesic drug having a concentration of 1 mg / ml-160 mg / ml, the drug being selected from a group consisting of: a local analgesic drug, and the combination of the local analgesic drug and a nonsteroidal analgesic drug and / or an opioid analgesic drug; (2) a drug menstruum in a proportion of 1%-75% (v / v), the menstruum being selected from a group consisting of benzyl alcohol, ethanol, benzyl benzoate, ethyl lactate, and tetrahydrofurfuryl polyethylene glycol ether; and (3) a drug sustained-release formulation having a proportion of 25%-99% (v / v), the sustained-release formulation being selected from a group consisting of natural vegetable oil, synthetic lipid, artificially improved half-natural lipid and derivative thereof. Also disclosed are a preparation process and use of the sustained-release drug delivery system.
Owner:LIPONT PHARMA

Nanometer particle of insoluble medicine and its prepn

The present invention provides one kind of nanometer particle of insoluble medicine and its preparation process. The nanometer particle has size smaller than 1000 nm, negative charge and zeta potential of 0-30 mV, and consists of medicine in 0.1-100 wt% and protecting agent in 0-99.9 wt%. The medicine solution forms emulsified drop in water medium containing surfactant and / or emulsified drop protecting agent through í‹solvent diffusioníŒ mode, and is homogenized to form nanometer medicine particle via the common effect of mechanical force and medicine solvent in í‹high pressure emulsifying homogenizationíŒ mode. The preparation process is reliable and practical, has common medicine supplementary material, including lecithin, poloxamer 188, etc., and is suitable for production process of nanometer medicine particle.
Owner:ZHEJIANG UNIV

Pharmaceutical compositions containing beta-lapachone, or derivatives or analogs thereof, and methods of using same

It has been confirmed that β-paradone has potent antitumor activity and inhibits human cancer lines, but its solubility in most pharmaceutical solvents is poor. The present invention overcomes this important defect by adopting a novel pharmaceutical composition, which contains an effective amount of β-paradone or its derivatives, analogs and pharmaceutical solubilizing carrier molecules, and the solubilizing carrier molecules can be It is a water-solubilizing carrier molecule, such as hydroxypropyl-β-cyclodextrin, or an oil-based solubilizing carrier molecule to enhance the solubility of β-paradone in an aqueous solution. An effective amount of β-paradone or its derivatives and analogs can be mixed with pharmaceutical solubilizing carrier molecules in an aqueous solution. The novel pharmaceutical compositions can be administered with a second anticancer agent, or in combination with radiation therapy. The invention also discloses a formula, which mixes pharmaceutical solubilizing carrier molecules with β-paladone or its derivatives and analogues, and after the mixture is freeze-dried, it is reconstituted in an aqueous solution to have effective solubility. The invention also provides the β-paladone emulsion in the excipient of the medicinal fat emulsion. The invention also discloses a method for treating cancer by administering the novel pharmaceutical composition and formulation to a sick body. The invention also provides a pharmaceutical kit.
Owner:阿奎利公司

Contraceptive and preparation method thereof

The invention relates to a contraceptive and a preparation method thereof. The present invention provides a hormonal contraceptive, and a chemical contraception prescription. An oral contraceptive hormone is dissolved or dispersed in an organic pharmaceutical solvent to prepared a stock solution; an external contraceptive is dissolved in purified water or a pharmaceutically acceptable solid carrier to dissolve the drug into a preparation; and the stock solution containing the oral contraceptive and prepared mixture containing external contraceptive are mixed. The present invention overcomes the respective defects of oral contraceptive and external contraceptive. The contraceptive takes the respective advantages of the oral and external contraceptives, and uses good drug absorption of the female vagina, especially sensitivity and dependence on hormone drugs to combine the characteristics of oral contraceptive and external contraceptive. The contraceptive creatively combines the two to avoid drug stimulation on the gastrointestinal tract, avoid the drug inactivation caused by liver first-pass metabolism, also reduce the dose, and form a novel pharmaceutical prescription.
Owner:郭曙平

Device for storing, extemporaneously preparing, and administering

The invention relates to a device (10) for storing and extemporaneously preparing, before administration, at least one active principle, which includes: A body (12), comprising at least one compartment for containing at least one lower volume of 5 ml of pharmaceutical solvent (22); a head (14), comprising at least one compartment for containing at least one active principle (24), particularly a very low dose, and comprising, in the upper portion thereof, of at least one collection chamber (32) provided with a filter (40), said head (14) capable of taking a first storing position P1, wherein said head (14) is in a distal position relative to the body (12), and a second preparation position P2, wherein said head (14) is in a proximal position relative to the body (12), at least one partition (16) separating the body (12) and the head (14); and a rupturing means (18) for rupturing said partition (16) such that the active principle (24) comes into contact with the solvent (22) and dissolves into the latter. The invention also aims to use said device to store and extemporaneously prepare at least one active principle with a view to administer the same.
Owner:菲利普·佩罗维奇

A kind of sodium alginate-based pH-responsive drug microcapsules and preparation method thereof

The invention discloses a sodium alginate-based pH-responsive drug microcapsule, which comprises the following components in parts by weight: 8-12 parts of a hydrophobic vinyl monomer, 0.6-1 part of a cross-linking agent containing a double bond, and a hydrophobic drug 1-2 parts, 3-5 parts of sodium alginate monomer, 0.06-0.1 parts of hydrophilic surfactant, 0.3-0.5 parts of initiator, 20-30 parts of oil-soluble drug solvent and 338-563 parts of water. The preparation method includes: a) weighing each component; b) dissolving hydrophobic vinyl monomer, double bond-containing cross-linking agent and drug in an oil-soluble drug solvent to obtain an oil phase; c) dissolving sodium alginate 1. The surfactant is dissolved in water to obtain a water phase; d) Add the oil phase to the water phase and emulsify to obtain an oil / water emulsion; e) After the oil / water emulsion is heated up, add an aqueous solution of the initiator dropwise, and after the reaction, centrifuge , washing and drying to obtain microcapsules. The preparation method provided by the invention is simple, easy to operate and has good reproducibility, and the prepared microcapsules have small particle size, uniform distribution, high encapsulation rate, good wall material mechanical properties and stable drug release performance.
Owner:HEBEI UNIVERSITY

Compound acne solution and preparation method thereof

The invention discloses a compound acne solution and a preparation method thereof. The preparation method comprises: S100, preparing a drug solvent: taking borneol and a soaking liquid, placing in a container, dissolving, uniformly stirring, and sealing; S200, preparing seven-component powder: taking calcined gypsum, Radix Puerariae, Folium Hibisci Mutabilis, Angelica dahurica, peppermint, Fritillaria thunbergii and Arisaema Cum Bile, and preparing seven-component powder; S300, leaching: adding the seven-component powder into the drug solvent, uniformly mixing, and soaking for 7-15 days in a sealed dark and cool place; S400, filtering: removing the residue through filtering, and adding glycerin to the filtrate; and S500, storing: storing in a sealed dark and cool place. According to the present invention, the compound acne solution has advantages of quick effect, short treatment course, wide application range and the like; and the preparation method is simple in process, and can save alarge amount of manpower and material resources.
Owner:傅若凌
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