Summary of the invention
The object of the present invention is to provide that a kind of new treatment is effective, untoward reaction is little and be expected to improve being used for the treatment of and/or preventing the particularly glaucomatous gel for eye that comprises latanoprost and timolol or its salt of oculopathy of drug bioavailability.
The inventor is surprised to find that, latanoprost and timolol or its salt are made the gel that comprises gel-type vehicle and surfactant, not only have the effect of good curing ocular disease, and systemic adverse reactions is very little.The present invention is based on above-mentioned discovery and be accomplished.
For this reason, first aspect present invention provides a kind of gel for eye, it comprises the latanoprost that treats and/or prevents effective dose and timolol or its salt (its officinal salt for example, particularly for example timolol or its salt), gel-type vehicle agent, surfactant, He Shui.
According to each gel for eye of first aspect present invention, wherein said gel-type vehicle agent is to be selected from following one or more: cellulose derivative, crosslinked acrylate copolymer, poloxamer, alginic acid, hyaluronic acid sodium, gellan gum (Gellan Gum), polyvinylpyrrolidone, crospolyvinylpyrrolidone, polyvinyl alcohol, Polyethylene Glycol.In one embodiment, described cellulose derivative includes but not limited to hydroxypropyl emthylcellulose, methylcellulose, hydroxypropyl cellulose, carboxymethyl cellulose and salt thereof for example sodium carboxymethyl cellulose, hydroxyethyl-cellulose, preferred hydroxypropyl cellulose, hydroxypropyl emthylcellulose, sodium carboxymethyl cellulose, more preferably hydroxypropyl methylcellulose 2910.In one embodiment, described crosslinked acrylate copolymer includes but not limited to carbomer, Polycarbophil.In one embodiment, in one embodiment described, described carbomer is selected from carbomer 980, carbomer 971, Carbopol 941, carbomer 973, Acritamer 940, carbomer 934, preferred carbomer 980.
According to each gel for eye of first aspect present invention, wherein said gel-type vehicle agent is to be selected from following one or more: carbomer, hydroxypropyl emthylcellulose, sodium carboxymethyl cellulose, polyvinyl alcohol.
According to each gel for eye of first aspect present invention, wherein said gel-type vehicle agent is the combination of carbomer and polyvinyl alcohol.In one embodiment, the combination of described carbomer and polyvinyl alcohol be carbomer and polyvinyl alcohol with 1: 0.5 to 1: 10 combination of weight ratio, be preferably with 1: 1 to 1: 5 combination of weight ratio.
According to each gel for eye of first aspect present invention, wherein said surfactant is selected from polyoxyethylene hydrogenated Oleum Ricini, Polysorbate.
According to each gel for eye of first aspect present invention, wherein said surfactant is selected from polyoxyl 40 hydrogenated castor oil, polyoxyethylene 60 castor oil hydrogenated, polyoxy 35 Oleum Ricini, polyoxyethylene sorbitan monoleate.
According to each gel for eye of first aspect present invention, the w/w percent by this gel wherein comprises:
Latanoprost 0.001-0.02%,
Timolol or its salt 0.05-2%,
Gel-type vehicle agent 0.05-10%,
Surfactant 0.02-2%,
Water is an amount of, adds to 100%.
According to each gel for eye of first aspect present invention, the w/w percent by this gel wherein comprises:
Latanoprost 0.001-0.01%,
Timolol or its salt 0.05-1%,
Gel-type vehicle agent 0.1-6%,
Surfactant 0.05-1%,
Water is an amount of, adds to 100%.
According to each gel for eye of first aspect present invention, the w/w percent by this gel wherein comprises:
Latanoprost 0.001-0.005%,
Timolol or its salt 0.05-0.5%,
Gel-type vehicle agent 0.5-6%,
Surfactant 0.05-0.5%,
Water is an amount of, adds to 100%.
According to each gel for eye of first aspect present invention, wherein also contain the pH value regulator.In an embodiment of first aspect present invention gel for eye, described pH value regulator be selected from boric acid, Borax, sodium hydroxide, hydrochloric acid, phosphate buffered solution, the acetate buffer solution etc. any or multiple.According to the present invention, the use amount of described pH value regulator in preparation can change because of multiple factor, described factor is pH value regulator type and intensity thereof for example, prescription is formed, the physics of medicine and preparation and chemical stability etc., those skilled in the art understand, the target pH value that the amount of this pH value regulator in gel of the present invention can easily be regulated according to hope is determined, for example the target pH value in hope is under the situation of 6.5-7.5, mixed most material particularly dewater with locate all the prescription compositions after, at preparation standardize solution (to final weight and/or volume) before, pH value regulator with Sq carries out the pH value adjusting to preparation, can easily determine the concrete consumption of pH value regulator in preparation thus.In an embodiment of first aspect present invention gel for eye, the pH value of described gel for eye is 4.5-8.5, and preferred pH value is 5.5-7.5, and preferred pH value is 6.0-7.0.
According to each gel for eye of first aspect present invention, wherein can also contain osmotic pressure regulator, the example that can be used for osmotic pressure regulator of the present invention include but not limited in propylene glycol, glycerol, glucose, sodium chloride, mannitol, the sorbitol etc. any or multiple.According to the present invention, the use amount of described osmotic pressure regulator in preparation can change because of multiple factor, described factor is osmotic pressure regulator type and intensity thereof for example, prescription is formed, the physics of medicine and preparation and chemical stability etc., those skilled in the art understand, the target osmotic pressure that the amount of this osmotic pressure regulator in gel of the present invention can easily be regulated according to hope is determined, for example the target osmotic pressure of hope for body fluid first-class substantially ooze or high slightly situation of oozing under, mixed most material particularly dewater with locate all the prescription compositions after, at preparation standardize solution (to final weight and/or volume) before, osmotic pressure regulator with Sq carries out the osmotic pressure adjusting to preparation, can easily determine the concrete consumption of osmotic pressure regulator in preparation thus.In one embodiment, gel for eye of the present invention contains 0-15.0% (w/w), preferred 0.01-10% (w/w), more preferably 0.01-5% (w/w), the more preferably osmotic pressure regulator of 0.05-2% (w/w) more substantially.In addition, also can tentatively determine the consumption of osmotic pressure regulator in preparation by Theoretical Calculation according to existing physical chemistry knowledge.
According to each gel for eye of first aspect present invention, wherein also contain one or more and be selected from following antibacterial: phenethanol, phenoxyethanol, methyl parahydroxybenzoate, ethylparaben, propyl p-hydroxybenzoate, benzalkonium chloride, chlorobutanol, benzalkonium bromide, cetrimonium bromide.In further embodiment, described antibacterial is to be selected from ethylparaben, benzalkonium chloride, the cetrimonium bromide one or more.In embodiment further, described antibacterial benzalkonium chloride accounts for the 0.001-0.05% (w/w) of this eye drop total amount.Preferably, described antibacterial accounts for the 0.005-0.02% (w/w) of this eye drop total amount.Preferably, described antibacterial accounts for the 0.008-0.01% (w/w) of this eye drop total amount.
According to each gel for eye of first aspect present invention, wherein also contain cyclodextrin, for example α, β, γ cyclodextrin, particularly beta cyclodextrin, more particularly hydroxypropyl beta cyclodextrin.
According to each gel for eye of first aspect present invention, wherein also contain chelating agent, be selected from ethylenediaminetetraacetic acid, disodiumedetate, preferred disodiumedetate.
According to each gel for eye of first aspect present invention, it is characterized in that it has the prescription shown in the embodiment of the invention and forms.
According to each gel for eye of first aspect present invention, it comprises following proportioning and forms:
About 0.05 weight portion of latanoprost,
About 3.4 weight portions of timolol maleate,
About 1.0 weight portions of polyoxyl 40 hydrogenated castor oil,
About 0.08 weight portion of benzalkonium chloride,
About 4.0 weight portions of one hypophosphite monohydrate sodium dihydrogen,
About 5.3 weight portions of sodium hydrogen phosphate,
About 50 weight portions of hydroxypropyl emthylcellulose (60SH-50),
About 4.8 weight portions of sodium chloride,
Water for injection is an amount of, adds to 1000 weight portions.
According to each gel for eye of first aspect present invention, it comprises following proportioning and forms:
About 0.05 weight portion of latanoprost,
About 3.4 weight portions of timolol maleate,
About 1.0 weight portions of polyoxyl 40 hydrogenated castor oil,
About 0.08 weight portion of benzalkonium chloride,
About 4.0 weight portions of one hypophosphite monohydrate sodium dihydrogen,
About 5.3 weight portions of sodium hydrogen phosphate,
About 50 weight portions of sodium carboxymethyl cellulose,
About 4.8 weight portions of sodium chloride,
Water for injection is an amount of, adds to 1000 weight portions.
According to each gel for eye of first aspect present invention, it comprises following proportioning and forms:
About 0.05 weight portion of latanoprost,
About 3.4 weight portions of timolol maleate,
About 1.0 weight portions of polyoxyl 40 hydrogenated castor oil,
About 0.08 weight portion of benzalkonium chloride,
About 5 weight portions of polyvinyl alcohol,
About 40 weight portions of carbomer 980P,
About 20 weight portions of glycerol,
About 1.75 weight portions of sodium hydroxide,
Water for injection is an amount of, adds to 1000 weight portions,
According to each gel for eye of first aspect present invention, it comprises following proportioning and forms:
About 0.2 weight portion of latanoprost,
About 27.4 weight portions of timolol maleate,
About 20 weight portions of polyoxyl 40 hydrogenated castor oil,
About 0.1 weight portion of benzalkonium chloride,
About 50 weight portions of hydroxypropyl emthylcellulose (60SH-50),
Water for injection is an amount of, adds to 1000 weight portions.
According to each gel for eye of first aspect present invention, it comprises following proportioning and forms:
About 0.1 weight portion of latanoprost,
About 13.7 weight portions of timolol maleate,
About 10 weight portions of polyoxyethylene sorbitan monoleate,
About 0.1 weight portion of benzalkonium chloride,
About 40 weight portions of sodium carboxymethyl cellulose,
Water for injection is an amount of, adds to 1000 weight portions.
According to each gel for eye of first aspect present invention, it comprises following proportioning and forms:
About 0.01 weight portion of latanoprost,
About 0.68 weight portion of timolol maleate,
About 0.1 weight portion of polyoxyethylene sorbitan monoleate,
About 0.1 weight portion of benzalkonium chloride,
About 2 weight portions of carbomer,
Water for injection is an amount of, adds to 1000 weight portions.
As used herein, words " pact " has the implication of well known to a person skilled in the art, be meant the general standard deviation that those skilled in the art understand especially, the standard deviation of for example representing mentioned numerical value and this numerical value 10% with interior (for example 8% with interior, 5% with interior, in 2%) numerical range, for example mention " about 2 weight portions ", expression comprises the scope (being that standard deviation is 10%) of " 1.8-2.2 weight portion ".
Second aspect present invention provides the preparation method of each described gel for eye of first aspect present invention, it comprises gel-type vehicle agent component is water-solublely expanded fully that the back forms gel-type vehicle with an amount of, other components are added in the gel-type vehicle after with water dissolution, and stir and the step of fill.
Second aspect present invention provides the preparation method of each described gel for eye of first aspect present invention, and it may further comprise the steps:
I) make gel-type vehicle agent component suitable quantity of water swelling, dissolving, sterilization, standby;
The active medicine latanoprost is mixed with surfactant, add suitable quantity of water and make medicine dissolution;
Iii) add active medicine timolol or its salt, and optional antibacterial, pH regulator agent, osmotic pressure regulator etc., stir;
Iv) make above i) and the iii) mixing of materials of gained, mend and add water to the prescription full dose, stir, fill, promptly.
In an embodiment of second aspect present invention preparation method, can prepare gel for eye of the present invention as follows:
(i) measure the matrix powder end by prescription, be dispersed in a spot of water, stir, placed 24 hours, make the abundant swelling of gel-type vehicle agent component, 121 ℃ of 30min sterilizations, standby;
(ii) the active medicine latanoprost is added the surfactant of recipe quantity, the water that adds an amount of 80-90 ℃ makes medicine dissolution;
(iii) add active medicine timolol or its salt, and optional antibacterial, pH regulator agent, osmotic pressure regulator etc., stir and make dissolving;
Medicine in (iv) will be (iii) and (ii) in the substrate mixing, stirred packing 30-60 minute.
The gel for eye that contains the gel for eye that comprises latanoprost and timolol or its salt that can make according to the inventive method, its outward appearance is clear and bright, aseptic, toxicity is low, zest is low does not particularly have a sand type, can provide a kind of safe and effective, ophthalmic preparation that untoward reaction is little for clinical.
Below to various aspects of the present invention and their benefit be further described.
As used herein, phrase " by the w/w percent of this gel " is meant that wherein the weight in grams number of the component that is comprised is this w/w percent in this gel 100g, promptly common represented g/100g, or be expressed as % (w/w).In the present invention, as not indicating in addition, % is w/w percent.
In this article, for the metering of timolol or its salt,, be timolol all then in its base if do not specialize in base or in salt shape.
As used herein, term " gel-type vehicle agent " is the general designation to the adjuvant that can form gel substrate, and the adjuvant that can be used for forming gel-type vehicle in this article includes but not limited to cellulose derivative, crosslinked acrylate copolymer, poloxamer, alginic acid, hyaluronic acid sodium, gellan gum, polyvinylpyrrolidone, crospolyvinylpyrrolidone, polyvinyl alcohol, Polyethylene Glycol etc.
Gel for eye of the present invention is a kind of waterborne compositions, wherein makes medium or solvent or excipient or the carrier of water as said composition.Although ophthalmic preparation of the present invention does not specifically note that used water accounts for the percent of ophthalmic preparation gross weight, perhaps do not specifically note the amount of institute's water during ophthalmic preparation of the present invention in preparation, but, those skilled in the art know that, as the medium or solvent or excipient or the carrier that drip with preparation, the amount of this water adds to the gel for eye full dose with water and calculates, and this is in the liquid preparation general metering method that adopts in the process for preparation of eye drop, injection or gel for eye of the present invention for example.
In gel for eye of the present invention, described antibacterial can be one or more combination in any.In one embodiment, described antibacterial is a benzalkonium chloride, and its amount accounts for the 0.001-0.02% (w/w) of ophthalmic preparation of the present invention, preferred 0.005-0.01% (w/w), more preferably 0.008% (w/w).
Preparation of the present invention can be placed in any needed doser that is suitable for ophthalmic preparation.This device can be that eye use drug-supplying system, as sterilization with aluminum pipe or multiple tube, plastic bottle etc.
The object of the present invention is to provide a kind of gel for eye use that contains active component latanoprost and timolol or its salt, reduce the zest of preparation to eye, expectation simultaneously reduces the caused systemic adverse reactions of timolol.The inventor finds, after in preparation of the present invention, using gel-type vehicle agent (high molecular polymer), can stick to ocular surface very effectively, thereby prolong drug is in the retention time of ocular surface, reduce the loss of medicine, and then reduce the systemic adverse reactions of medicine from nasolacrimal duct.
The specific embodiment:
Further specify the present invention below by specific embodiment, still, should be understood to, these embodiment are only used for the more detailed usefulness that specifically describes, and are used for limiting in any form the present invention and should not be construed as.
The present invention carries out generality and/or concrete description to the material and the test method that are used in the test.Though for realizing that employed many materials of the object of the invention and operational approach are well known in the art, the present invention still does to describe in detail as far as possible at this.It will be apparent to those skilled in the art that hereinafter, if do not specify that material therefor of the present invention and operational approach are well known in the art.
Embodiment 1
Prepare gel for eye use by following prescription proportioning.
Latanoprost 0.05g
Timolol maleate 3.42g
Polyoxyl 40 hydrogenated castor oil 1.0g
Benzalkonium chloride 0.08g
One hypophosphite monohydrate sodium dihydrogen 4.05g
Sodium hydrogen phosphate 5.30g
Hydroxypropyl emthylcellulose (60SH-50) 50g
Sodium chloride 4.8g
Water for injection adds to 1000g
Preparation method: the hydroxypropyl emthylcellulose of getting recipe quantity spends the night with an amount of water for injection swelling, and 121 ℃ of pressure sterilizings 30 minutes are crossed 400 mesh sieves, and are standby; Get the recipe quantity latanoprost, add the recipe quantity polyoxyl 40 hydrogenated castor oil, mix homogeneously adds 80-90 ℃ the about 500g of water for injection, stirring makes dissolving, add benzalkonium chloride, timolol maleate, a hypophosphite monohydrate sodium dihydrogen, sodium hydrogen phosphate, sodium chloride successively and stir and make dissolving, 0.22 μ m filters, and adds in the hydroxypropyl methylcellulose matrix, moisturizing is to 1000g, stir, packing, promptly.
Embodiment 2
With embodiment 1 operation, substitute hydroxypropyl emthylcellulose with sodium carboxymethyl cellulose, make gel for eye use.
Embodiment 3
Prepare gel for eye use by following prescription proportioning.
Latanoprost 0.05g
Timolol maleate 3.42g
Polyoxyl 40 hydrogenated castor oil 1.0g
Benzalkonium chloride 0.08g
Polyvinyl alcohol 5g
Carbomer 980P 40g
Glycerol 20g
Sodium hydroxide 1.75g
Water for injection adds to 1000g
Preparation method: the carbomer 980P that gets recipe quantity spends the night with an amount of water for injection swelling, and 121 ℃ of pressure sterilizings 30 minutes are crossed 400 mesh sieves, and are standby; The polyvinyl alcohol of getting recipe quantity ℃ makes dissolving with an amount of water for injection heating in water bath to 90, and 121 ℃ of pressure sterilizings 30 minutes are crossed 400 mesh sieves, and are standby; Get the recipe quantity latanoprost, add the recipe quantity polyoxyl 40 hydrogenated castor oil, mix homogeneously, the about 500g of water for injection that adds 80-90 ℃ stirs and to make dissolving, adds recipe quantity benzalkonium chloride, timolol maleate, glycerol, sodium hydroxide successively and stirs and make dissolving, 0.22 μ m filters, add in the carbomer 980P substrate, stir, add poly-vinyl alcohol solution again, moisturizing is to 1000g, stir, packing, promptly.
Embodiment 4
Prepare gel for eye use by following prescription proportioning.
Latanoprost 0.2g
Timolol maleate 27.36g
Polyoxyl 40 hydrogenated castor oil 20g
Benzalkonium chloride 0.1g
Hydroxypropyl emthylcellulose (60SH-50) 50g
Sodium hydroxide is an amount of
Water for injection adds to 1000g
Preparation method: the hydroxypropyl emthylcellulose of getting recipe quantity spends the night with an amount of water for injection swelling, and 121 ℃ of pressure sterilizings 30 minutes are crossed 400 mesh sieves, and are standby; Get the recipe quantity latanoprost, add the recipe quantity polyoxyl 40 hydrogenated castor oil, mix homogeneously, the about 500g of water for injection that adds 80-90 ℃, stirring makes dissolving, adds benzalkonium chloride, timolol maleate, sodium chloride successively and stirs and make dissolving, and 0.22 μ m filters, add in hydroxypropyl emthylcellulose and the carbomer substrate, moisturizing is to 1000g, and sodium hydroxide is regulated pH value to 6.5~7.0, stirs, packing, promptly.
Embodiment 5
Prepare gel for eye use by following prescription proportioning.
Latanoprost 0.1g
Timolol maleate 13.68g
Polyoxyethylene sorbitan monoleate 10g
Benzalkonium chloride 0.1g
Sodium carboxymethyl cellulose 40g
Sodium hydroxide is an amount of
Water for injection adds to 1000g
Preparation method: the sodium carboxymethyl cellulose of getting recipe quantity spends the night with an amount of water for injection swelling, and 121 ℃ of pressure sterilizings 30 minutes are crossed 400 mesh sieves, and are standby; Get the recipe quantity latanoprost, add the recipe quantity polyoxyethylene sorbitan monoleate, mix homogeneously, the about 500g of water for injection that adds 80-90 ℃, stirring makes dissolving, adds benzalkonium chloride, timolol maleate successively and stirs and make dissolving, and 0.22 μ m filters, add in the sodium carboxymethyl cellulose substrate, moisturizing is to 1000g, and sodium hydroxide is regulated pH value to 6.5~7.0, stirs, packing, promptly.
Embodiment 6
Prepare gel for eye use by following prescription proportioning.
Latanoprost 0.01g
Timolol maleate 0.684g
Polyoxyethylene sorbitan monoleate 0.1g
Benzalkonium chloride 0.1g
Carbomer 2g
Sodium hydroxide is an amount of
Water for injection adds to 1000g
Preparation method: the carbomer of getting recipe quantity spends the night with an amount of water for injection swelling, and 121 ℃ of pressure sterilizings 30 minutes are crossed 400 mesh sieves, and are standby; Get the recipe quantity latanoprost, add the recipe quantity polyoxyethylene sorbitan monoleate, mix homogeneously, the about 500g of water for injection that adds 80-90 ℃, stirring makes dissolving, adds benzalkonium chloride, timolol maleate successively and stirs and make dissolving, and 0.22 μ m filters, add in the carbomer substrate, sodium hydroxide is regulated pH value to 6.5~7.0, and moisturizing stirs to 1000g, packing, promptly.
Embodiment 1-1
Prepare ophthalmic preparation by following prescription proportioning.
Latanoprost 0.05g
Timolol maleate 3.42g
Benzalkonium chloride 0.2g
One hypophosphite monohydrate sodium dihydrogen 4.05g
Sodium hydrogen phosphate 5.30g
Sodium chloride 4.8g
Water for injection adds to 1000ml
Preparation method: about 950ml that fetches water, adding timolol maleate, a hypophosphite monohydrate sodium dihydrogen, sodium hydrogen phosphate, sodium chloride stir and make dissolving; Get the recipe quantity benzalkonium chloride and add water and make 50% solution, join and draw in the smooth prostaglandin, stir more than 60 minutes; Two kinds of solution are mixed, in 101 ℃~103 ℃ heating 10~11 minutes.Solution is cooled to about 25 ℃, supplies the water yield, stir, fill, promptly.
Illustrate: the side's of Clicking here method for making preparation and eye drop, easily from the loss of nasolacrimal duct, and be absorbed into whole body, and cause the unify systemic adverse reactions of respiratory system of cardiovascular system through nasolacrimal duct.And the prescription gained preparation of embodiment 1-6 does not see that above-mentioned defective is arranged.
Embodiment 3-1
Prepare ophthalmic preparation by following prescription proportioning.
Latanoprost 0.05g
Timolol maleate 3.42g
Benzalkonium chloride 0.2g
Glycerol 20g
Sodium hydroxide is an amount of
Water for injection adds to 1000ml
Preparation method: get benzalkonium chloride and add water and make 50% solution, add and draw smooth prostaglandin, stir more than 60 minutes; Add the about 950ml of water, made the latanoprost dissolving in 10~11 minutes in 101 ℃~103 ℃ heating.Solution is cooled to about 25 ℃, and adding timolol maleate, glycerol stir and make dissolving, and sodium hydroxide is regulated pH value to 6.5~7.0, and moisturizing stirs to 1000ml, fill, promptly.
Illustrate: the side's of Clicking here method for making preparation and eye drop, in storage process, latanoprost is easily degraded; And eye drop is easily from the loss of nasolacrimal duct, and is absorbed into whole body through nasolacrimal duct, and causes the unify systemic adverse reactions of respiratory system of cardiovascular system.
Experimental example 1: the eye irritation test of gel for eye use of the present invention
Rabbit single and repeatedly give gel for eye use of the present invention, all not finding is had the obvious stimulation effect to trying tame lagophthalmos.
Test objective:
Observe the animal via eye and give the irritant reaction situation that produced behind the gel for eye use of the present invention.
Experimental animal:
New zealand rabbit, body weight 2.0-2.5kg, the male and female dual-purpose is provided by Shenyang Pharmaceutical University experimental animal center, and animal subject does not have any inflammatory reaction and ocular injury.
Be subjected to the reagent thing:
Gel for eye use of the present invention (embodiment 4).
Test method:
Adopt consubstantiality left and right sides self matching type, select 4 of rabbit for use, test in preceding 24 hours the eyes of every animal are checked, have the animal of eye irritation symptom, cornea defective and conjunctival damage can not be used for test.
(1) single-dose eye irritant test:
1 of gel for eye use of the present invention (about 0.03g) is splashed in the rabbit conjunctiva of right eye capsule, and the excipient that left eye splashes into equivalent in contrast.Passive closed 10 seconds of administration relief lagophthalmos splashes into 2% fluorescein sodium then, 1,2,4,24,48,72 hour to 7 days local excitation response situation after usefulness slit lamp (YZ5E1 type, Suzhou Medical Equipment General Factory) the observation administration.
(2) multiple dosing eye irritant test:
1 of gel for eye use of the present invention (about 0.03g) is splashed in the rabbit conjunctiva of right eye capsule, left eye splashes into commensurability excipient in contrast, and passive closed 10 seconds of administration relief lagophthalmos splashes into 2% fluorescein sodium then, observe with slit lamp (YZ5E1 type, Suzhou Medical Equipment General Factory).Administration every day 1 time, successive administration 14 days.1,2,4,24,48,72 hour to 7 days observation eye irritant reaction situation after the preceding and last administration of administration every day.
Criterion:
According to table 1, the irritant reaction score value addition of cornea, iris and conjunctiva of each animal gets total mark observing time with each, and one group integration summation divided by number of animals, is promptly got last score value.Press table 2 and judge its stimulation degree.
Table 1 an irritant reaction score value standard
Table 2 eye irritation evaluation criterion
Result of the test:
Each time point of each animal of administration group is not all found to be subjected to the reagent thing that the animal subject eye is had the obvious stimulation effect behind single and the multiple dosing, it stimulates comprehensive mean scores to be 0, and each time point of each animal of matched group is not found to give behind the excipient animal subject eye is had the obvious stimulation effect yet.Eye irritation is evaluated as nonirritant.Each is organized each animals administer and viewing duration and there is no agitation, Deviant Behavior activity such as drowsiness.
Conclusion (of pressure testing):
Gel for eye use single of the present invention and multiple dosing do not find to being tried tame lagophthalmos the obvious stimulation effect is arranged.
Through above identical test, the result shows that the sample of embodiment 1,2,3,5,6 also has and the similar eye irritation result of the test of above embodiment 4 gained.In addition, the sample of embodiment 1-1 and 3-1 is tested as stated above, be found that the zest of these two samples is obviously bigger, and demonstrate bigger systemic side effects.