42 results about "Aciclovir" patented technology

The invention discloses an application of polycyclic polyketides in preparation of an anti-HV (herpes virus) drug. It is found that the polyketides can inhibit diseases caused by infection of four HVs including HSV-1 (herpes simplex virus-1), HSV-2 (herpes simplex virus-2), VZV (varicella zoster virus) and CMV (cytomegalo virus). The compounds show equivalent activity but have different acting mechanisms as compared with commercial drugs such as acyclovir and can overcome drug resistance of existing commercial drugs. Therefore, the compounds have good application prospects in treatment of related diseases caused by infection of HVs including HSV-1, HSV-2, VZV and CMV.

The invention provides acyclovir microemulsion-based gel. The acyclovir microemulsion-based gel is a clear and transparent O/W acyclovir microemulsion prepared from an oil phase, a water phase, a surfactant and a cosurfactant. Through use of carbomer as a hydrophilic gel matrix, the acyclovir microemulsion-based gel is prepared. The acyclovir microemulsion-based gel has surface positive charge, small and uniform particles and average granularity in 50nm, and can carry a drug into skin minimal structures such as hair follicles, sebaceous gland and sweat gland opening, keep them in the minimal structures, improve a drug retention amount of the skin and realize continuous drug release in the skin. Compared with the common gel preparations, the acyclovir microemulsion-based gel has good skin targeting effects and can be used for treating diseases related to virus infection.

A slow-release antiviral medicine in the form of liquid is prepared from acyclovir (30-90 wt%) and auxiliary (10-70 wt.%) including the cationic exchange resin and ethylcellulose and/or acrylic resin for slow releasing and the hydroxypropyl cellulose for adhering. Its advantages are high curative effect and low toxic by-effect.

The present invention relates to an acyclovir formulation having improved bioavailability resulting in better efficacy and/or requiring less frequent administration.

The invention discloses a controlled release dosage form comprising a therapeutically effective amount of a pharmaceutically active agent, illustrated by Acyclovir, that would release in about 12 hours not more than about 90% of the said active agent in a simulated gastric juice in a first order rate of release in a USP type 1 dissolution test, and not containing a solubilizer or a swelling enhancer or both, comprising (a) a tablet made from polymer matrix of at least two biocompatible polymers, illustrated by Carbopol 974P and polyethylene oxide, the said pharmaceutically active agent and pharmaceutically permitted excipients; the said tablet capable of rapid swelling without disintegration in the said simulated gastric juice to a size that shall result in its gastric retention in the stomach and start controlled release of the said active agent by starting controlled erosion as well as diffusion immediately after coming into contact with the said gastric juice, or (b) microspheres of ungrafted chitosan or a chitosan derivative illustrated by thiolated chitosan and trimethyl chitosan, or Carbopol incorporating the said active agent, wherein the said pharmaceutically active agent is not a polymeric molecule and after administration in stomach, the said microspheres adhare to the gastric mucosa for a long time releasing the active agent in a controlled way.

The invention belongs to the field of traditional Chinese medicine, and particularly relates to Pien Tze Huang and new application of a preparation thereof in preparing a drug for treating herpes zoster. An in-vitro experiment shows that Pien Tze Huang can dose-dependently inhibit duplication of chicken varicella-herpes zoster viruses (VZV). A clinical study finds that the combination of Pien Tzehuang and anti-virus drugs of valaciclovir and acyclovir has an obvious curative effect on alert period zoster viruses due to liver yu heat from the line, improvement of clinical symptoms of a patientcan be promoted, incrustation of herpes can be quickly promoted, new herpes can be stopped from generating, pain can be relieved, and the treatment time can also be shortened; besides, the incidenceof postherpetic neuralgia and the occurrence rate of adverse reactions occurring after treatment can also be lowered, and the clinical application has obvious advantages.

The invention relates to the field of pharmaceutical preparations, and in particular relates to an acyclovir pharmaceutical composition and a preparation method thereof. The acyclovir pharmaceutical composition disclosed by the invention is a mixture comprising the following components in percentage by mass: 28.2-60.9% of acyclovir, 10-50% of a filling agent, 5-15% of an adhesion agent, 1-5% of a disintegrating agent and 0.1-1.8% of a lubricating agent. The acyclovir pharmaceutical composition disclosed by the invention is scientific in formula, simple in preparation process, easy to prepare, low in loss rate, smooth in surface and good in colour, lustre and curative effect.

The invention aims to provide a ring-free nucleoside phosphate derivative having an anti-hepatitis B virus activity and represented by formula I shown in the specification and a nontoxic pharmaceutically acceptable salt, hydrate or solvate thereof, wherein R1 represents H or methyl; absolute configuration of carbon atoms connected with R1 is an R or S isomer or an RS racemate; R2 represents -R3 or -OR3; R3 represents C1-C8 alkyl or cycloalkyl, and is selected from methyl, ethyl, propyl, butyl, isopropyl, isobutyl, tert-butyl, cyclopentyl, cyclohexyl and the like.

The invention relates to antibacterial antiviral stainless steel and a preparing method thereof. The preparing method comprises the following steps that firstly, stainless steel is subjected to anodicoxidation, and an anodic oxidation film with micro holes is formed on the surface of the stainless steel; secondly, soaking and primary heating are carried out in sol A; and the thirdly, soaking andsecondary heating are carried out in sol B, and the antibacterial antiviral stainless steel is obtained, wherein the sol A comprises butyl titanate, and the sol B comprises valaciclovir hydrochlorideand acyclovir. The preparing method mainly decomposes the butyl titanate in the sol A into nanometer titania through primary heating, through two times of sol soaking and heating treatment, the nanometer titania and valaciclovir hydrochloride and acyclovir compounded antibacterial antiviral components are attached to the interiors and the surfaces of the micro holes of the anodic oxidation film, the stainless steel has the good and durable antibacterial antiviral performance, and the preparing method is easy to operate, and beneficial to large-scale popularization.

An ointment for treating skin tinea, especially the psoriasis, is prepared from dexamethasone acetate and aciclovir in the ratio of (0.75-4.50):30.

The present invention discloses a method for detoxification culture of lily by using an acyclovir agent, and belongs to the fields of plant tissue culture rapid propagation technologies and biotechnologies. The method comprises: lily seedball virus detection, preparation of culture medium to be used, explant sterilizing and inoculating, explant culture, tissue culture seedling virus detection and other steps so as to rapidly obtain a large number of detoxification tissue culture seedlings. According to the present invention, the optimal induction culture medium formula for direct differentiation of the lily into the bud and the root-free tissue culture seedling is obtained through the orthogonal method, and the acyclovir agents with a series of concentration gradients are prepared to screen the optimized detoxification concentration, wherein the detoxification efficiency can achieve 90%, the induction culture period can be shortened, the characteristics of high detoxification rate, high value-added factor and the like are provided, and the technical foundation is provided for cultivation of lily virus-free plants and promotion of research on non-toxic cultivation.

The invention discloses an application of pulsatilla chinensis or an extract thereof to preparation of a medicine for treating herpes zoster, and a composition taking the pulsatilla chinensis extract as an active component. The composition has no toxic or side effect on human bodies, has no adverse reaction or sequelae after being used by patients, has the effect of treating herpes zoster remarkably superior to that of acyclovir cream commonly used in clinic at present, is an externally-applied good medicine for treating skin herpes zoster, and is worthy of popularization and application. The damage to the gastrointestinal function of a human body caused by oral medicines is avoided; besides, a remarkable treatment effect is achieved; and the cream has wide application value.

The invention relates to an acyclovir emulsifiable paste, and belongs to the field of chemical medicinal preparations. The emulsifiable paste is prepared from the following raw materials with the total amount of 100 parts by weight: 2-5 parts of acyclovir, 4-10 parts of cetostearyl alcohol, 2-10 parts of monoglyceride stearate, 4-10 parts of white vaseline, 4-10 parts of glycerin, 0.5-2 parts of sodium dodecyl sulfate, 0.2-0.5 part of ethylparaben, 0.5-2 parts of dimethyl sulfoxide, 0.2-1.0 part of benzalkonium bromide solution with a concentration of 5 wt%, and the balance purified water. The acyclovir emulsifiable paste provided by the invention is good in quality stability, is capable of rapidly permeating skin and being reserved for a relatively long time, is convenient to use and good in patient tolerance, causes no adverse reactions, and is worth for clinic popularization and application.

Disclosed is a formulation comprising at least two of Rheum palmatum, Chrysanthemum indicum and Sanguisorba officinalis extracts or prevalent molecules therefrom and a pharmaceutically acceptable carrier. Further disclosed is a formulation comprising one or more of Rheum palmatum, Chrysanthemum indicum and Sanguisorba officinalis extracts, or prevalent molecules therefrom in combination with acyclovir and a pharmaceutically acceptable carrier. Disclosed also is a method for treating herpesvirus infections by administering a formulation comprising extracts of Rheum palmatum, Chrysanthemum indicum or Sanguisorba officinalis extracts or prevalent molecules therefrom with or without an antiviral agent, such as acyclovir and a pharmaceutically acceptable carrier.

Provided herein are gel formulations of acyclovir with a low concentration of acyclovir, which can be used, for example, for the treatment of recurrent herpes labialis (cold sores) in immunocompetent adults and adolescents 12 years of age and older. The gel formulation can be an aqueous gel formulation, an emulsified gel formulation, or a non-aqueous gel formulation.

The invention discloses a method for quickly measuring the content of acyclovir gel. The method disclosed by the invention specifically comprises the following steps of S1, dilution of a to-be-testedproduct, S2, first time electrophoretic detection, S3, preparation of a mobile phase detection pretreatment solution, S4, oxidation luminescence treatment of acyclovir, S5, detection of luminous content, and S6, analysis of detection results. The invention relates to the technical field of medical measurement. By adopting the method for quickly measuring the content of acyclovir gel, the detectionand measurement of acyclovir can be realized by combining efficient capillary electrophoresis with mobile phase injection detection, the method has the advantages of high detection column efficiency,high separation speed, small sample volume, simple instrument and high specificity, furthermore, the method is fast and accurate, the purposes of wide linear range, high sensitivity and high analysisspeed are achieved, an inspector does not need to spend a lot of time waiting for the detection, and thus fast and accurate measurement of acyclovir is well achieved.