CN1285335C - Pyrithioxine hydrochloride freeze-dried composition and its preparing method - Google Patents

Pyrithioxine hydrochloride freeze-dried composition and its preparing method Download PDF

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Publication number
CN1285335C
CN1285335C CN 200410017640 CN200410017640A CN1285335C CN 1285335 C CN1285335 C CN 1285335C CN 200410017640 CN200410017640 CN 200410017640 CN 200410017640 A CN200410017640 A CN 200410017640A CN 1285335 C CN1285335 C CN 1285335C
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China
Prior art keywords
divalvon
pyrithioxin
freeze
dihydrochloride
hours
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CN 200410017640
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CN1562007A (en
Inventor
金三九
张健
楼金芳
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Hangzhou Tigermed Pharmaceutical Technology Co Ltd
ZHEJIANG JIAFENG PHARMACEUTICAL CO Ltd
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Individual
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Abstract

The present invention relates to the technical field of medicine, which particularly relates to a pyrithioxin dihydrochloride freeze-dried composition and a preparation method thereof. The pyrithioxin dihydrochloride freeze-dried composition comprises pyrithioxin dihydrochloride and auxiliary materials, wherein the weight proportion of the pyrithioxin dihydrochloride to the auxiliary materials is 1:0.2 to 2; the auxiliary materials comprise excipient. The preparation method comprises: the pyrithioxin dihydrochloride and the auxiliary materials are put into a material compounding barrel; water for injection is added to the pyrithioxin dihydrochloride and the auxiliary materials; the pyrithioxin dihydrochloride and the auxiliary materials are sufficiently dissolved; active carbon is added to the pyrithioxin dihydrochloride and the auxiliary materials, and is stirred, statically stood and filtered; the filtered solution is then put into a freeze drier to be frozen and dried; after the solution is frozen and dried, the solution is sealed, and the pyrithioxin dihydrochloride freeze-dried composition is obtained. The pyrithioxin dihydrochloride freeze-dried composition of the present invention solves the problem of poor water solubility of pyrithioxin in the prior art, and adopts freeze-dried technology. Moreover, the excipient is added to the pyrithioxin dihydrochloride freeze-dried composition, and the dissolvability of the pyrithioxin is increased. The pyrithioxin dihydrochloride freeze-dried composition solves the problem of poor bioavailability of pyrithioxin.

Description

A kind of divalvon-D lyophilized injectable powder and preparation method thereof
Technical field
The present invention relates to medical technical field, be specifically related to a kind of divalvon-D lyophilized injectable powder and preparation method thereof.
Background technology
Divalvon-D (molecular formula: C 16H 20N 2O 4S 22HClH 2O) being a kind of metabolic medicine of brain that improves, is vitamin B 6Derivant, can promote glucose and amino acid metabolism in the brain, improve the whole body assimilation, increase the carotid artery flow amount, cerebral function improvement.Limbic system and network structure also there is stimulation.Divalvon-D mainly is applicable to the dizzy distending pain, insomnia, hypomnesis of cerebral trauma sequela, encephalitis and meningitis sequela etc., the improvement of absent minded, emotion changes; Also can be used for cerebral arteriosclerosis, senile dementia mental symptom.
Divalvon-D is used more extensive clinically, and the dosage form of listing is mainly capsule, conventional tablet, Injectable sterile packing powder pin both at home and abroad at present.Its oral formulations exist the problem of bioavailability difference, and its Injectable sterile packing powder pin is also poorly soluble because of it, has been subjected to certain restriction in clinical use because the dissolubility of divalvon-D is relatively poor always, uses very inconvenience.
Summary of the invention
The object of the present invention is to provide the high divalvon-D lyophilized injectable powder of a kind of bioavailability.
Another object of the present invention is to provide a kind of preparation method of divalvon-D lyophilized injectable powder.
A kind of divalvon-D lyophilized injectable powder, form by divalvon-D and excipient, the weight ratio of divalvon-D and excipient is 1: 0.2~2, described excipient is that in mannitol, lactose, sodium chloride, sorbitol, the xylitol one or more mix, wherein the weight ratio of divalvon-D and mannitol be 1: 0.5 except.
The above-mentioned divalvon-D and the weight ratio of excipient are 1: 0.4~1, wherein the weight ratio of divalvon-D and mannitol be 1: 0.5 except.
The specification of described injectable powder is every bottle of hydrochloric pyritinol 100mg, 200mg, 400mg or 600mg.
A kind of preparation method of divalvon-D lyophilized injectable powder, comprise divalvon-D and adjuvant are put into mixer, add water for injection again, fully dissolving, add active carbon and stirring, leave standstill, filter, the solution that will obtain after will filtering is again put into and is carried out lyophilization in the freezer dryer, seal after lyophilizing is finished promptly, it is characterized in that the pre-freeze temperature is-20 ℃~-60 ℃ in the freezing dry process, the pre-freeze time is 2 hours~8 hours, 0 ℃~-40 ℃ of sublimation drying temperature, 15 hours~40 hours sublimation drying time.
Above-mentioned pre-freeze temperature is-30 ℃~-50 ℃, and the pre-freeze time is 4~5 hours; Sublimation drying temperature-10 ℃~-30 ℃, 25 hours~30 hours sublimation drying time.
Divalvon-D lyophilized injectable powder of the present invention, when using clinically, can add an amount of aseptic medicinal aqueous diluent (for example: G/W, normal saline, water for injection and other known aqueous diluent), be diluted to for intravenous drip or intramuscular injection injection.
Divalvon-D lyophilized injectable powder of the present invention, solved the problem of pyritinol poorly water-soluble in the prior art, adopt freeze drying technology, and adding excipient, the dissolubility and the stability of pyritinol have been improved, solve the problem of the bioavailability difference of pyritinol, guaranteed the safety and the convenience of medication.
The specific embodiment
Below by specific embodiment the present invention is further specified.
Embodiment 1: get divalvon-D 400g and mannitol 200g, make 1000 bottles.Divalvon-D and mannitol are added in the mixer, add the water for injection that boils postcooling to 80 ℃, fully dissolving makes it to become homogeneous solution; Add active carbon and stirring, leave standstill, filter, lyophilizing is sealed, and gets white hydrochloride pyritinol lyophilized injectable powder.Parameter control during lyophilization: the pre-freeze temperature is-40 ℃, and the pre-freeze time is 4 hours; Sublimation drying temperature-30 ℃, 30 hours sublimation drying time.
Embodiment 2: get divalvon-D 100g and lactose 200g, make 1000 bottles.Divalvon-D and lactose are added in the mixer, add the water for injection that boils postcooling to 80 ℃, fully dissolving makes it to become homogeneous solution; Add active carbon and stirring, leave standstill, filter, lyophilizing is sealed, and gets white hydrochloride pyritinol lyophilized injectable powder.Parameter control during lyophilization is preferred: the pre-freeze temperature is-30 ℃, and the pre-freeze time is 5 hours; Sublimation drying temperature-10 ℃, 25 hours sublimation drying time.
Embodiment 3: get divalvon-D 200g and mannitol 100g, lactose 100g, make 1000 bottles.Divalvon-D and mannitol, lactose are added in the mixer, add the water for injection that boils postcooling to 80 ℃, fully dissolving makes it to become homogeneous solution; Add active carbon and stirring, leave standstill, filter, lyophilizing is sealed, and gets white hydrochloride pyritinol lyophilized injectable powder.Parameter control during lyophilization is preferred: the pre-freeze temperature is-40 ℃, and the pre-freeze time is 4.5 hours; Sublimation drying temperature-15 ℃, 28 hours sublimation drying time.
Embodiment 4: get divalvon-D 600g and sorbitol 200g, make 1000 bottles.Divalvon-D and sorbitol are added in the mixer, add the water for injection that boils postcooling to 80 ℃, fully dissolving makes it to become homogeneous solution; Add active carbon and stirring, leave standstill, filter, lyophilizing is sealed, and gets white hydrochloride pyritinol lyophilized injectable powder.Parameter control during lyophilization is preferred: the pre-freeze temperature is-35 ℃, and the pre-freeze time is 5 hours; Sublimation drying temperature-20 ℃, 26 hours sublimation drying time.
Embodiment 5: get divalvon-D 400g and sorbitol 100g, mannitol 100g, lactose 100g, add in the mixer, add the water for injection that boils postcooling to 80 ℃, fully dissolving makes it to become homogeneous solution; Add active carbon and stirring, leave standstill, filter, lyophilizing is sealed, and gets white hydrochloride pyritinol lyophilized injectable powder.Parameter control during lyophilization is preferred: the pre-freeze temperature is-45 ℃, and the pre-freeze time is 5 hours; Sublimation drying temperature-30 ℃, 30 hours sublimation drying time.
Experimental example 6: the stability of divalvon-D freeze-dried powder.
The divalvon-D freeze-dried powder that the foregoing description is made carry out the preliminarily stabilised investigation (1. 4500LX illumination place down 10 days, 2. high temperature was placed 10 days down for 60 ℃), in the tenth day sampling and measuring, the result was as table 1-5.
Table 1: embodiment 1 study on the stability result
Natural law Character Content (%) Related substance (%) Clarity of solution and color Clarity
0 The white block 99.58 0.30 Up to specification Up to specification
4500LX illumination in 10 days The white block 99.46 0.32 Up to specification Up to specification
High temperature was 60 ℃ in 10 days The white block 99.51 0.36 Up to specification Up to specification
Table 2: embodiment 2 study on the stability results
Natural law Character Content (%) Related substance (%) Clarity of solution and color Clarity
0 The white block 99.64 0.38 Up to specification Up to specification
4500LX illumination in 10 days The white block 99.50 0.44 Up to specification Up to specification
High temperature was 60 ℃ in 10 days The white block 99.42 0.35 Up to specification Up to specification
Table 3: embodiment 3 study on the stability results
Natural law Character Content (%) Related substance (%) Clarity of solution and color Clarity
0 The white block 99.28 0.32 Up to specification Up to specification
4500LX illumination in 10 days The white block 99.35 0.34 Up to specification Up to specification
High temperature was 60 ℃ in 10 days The white block 99.24 0.35 Up to specification Up to specification
Table 4: embodiment 4 study on the stability results
Natural law Character Content (%) Related substance (%) Clarity of solution and color Clarity
0 The white block 99.54 0.34 Up to specification Up to specification
4500LX illumination in 10 days The white block 99.58 0.33 Up to specification Up to specification
High temperature was 60 ℃ in 10 days The white block 99.42 0.30 Up to specification Up to specification
Table 5: embodiment 5 study on the stability results
Natural law Character Content (%) Related substance (%) Clarity of solution and color Clarity
0 The white block 99.15 0.30 Up to specification Up to specification
4500LX illumination in 10 days The white block 99.08 0.36 Up to specification Up to specification
High temperature was 60 ℃ in 10 days The white block 99.16 0.32 Up to specification Up to specification
Above result shows: divalvon-D freeze-dried powder of the present invention can be rebuild the injection that obtains clear rapidly after adding water, and this fine solubility and stability have guaranteed the safety and the convenience of medication.
Experimental example 7: the Generally Recognized as safe of divalvon-D freeze-dried powder
The divalvon-D freeze-dried powder that the foregoing description 1-5 makes is done the Generally Recognized as safe experiment, and experimental result shows nonirritant, no anaphylactic reaction, does not also have haemolysis.

Claims (5)

1. divalvon-D lyophilized injectable powder, form by divalvon-D and excipient, the weight ratio that it is characterized in that divalvon-D and excipient is 1: 0.2~2, described excipient is that in mannitol, lactose, sodium chloride, sorbitol, the xylitol one or more mix, wherein the weight ratio of divalvon-D and mannitol be 1: 0.5 except.
2. a kind of divalvon-D lyophilized injectable powder as claimed in claim 1, the weight ratio that it is characterized in that divalvon-D and excipient is 1: 0.4~1, wherein the weight ratio of divalvon-D and mannitol be 1: 0.5 except.
3. a kind of divalvon-D lyophilized injectable powder as claimed in claim 1 or 2, the specification that it is characterized in that described injectable powder are every bottle of hydrochloric pyritinol 100mg, 200mg, 400mg or 600mg.
4. the preparation method of a divalvon-D lyophilized injectable powder, comprise divalvon-D and adjuvant are put into mixer, add water for injection again, fully dissolving, add active carbon and stirring, leave standstill, filter, the solution that will obtain after will filtering is again put into and is carried out lyophilization in the freezer dryer, seal after lyophilizing is finished promptly, it is characterized in that the pre-freeze temperature is-20 ℃~-60 ℃ in the freezing dry process, the pre-freeze time is 2 hours~8 hours, 0 ℃~-40 ℃ of sublimation drying temperature, 15 hours~40 hours sublimation drying time.
5. the preparation method of a kind of divalvon-D powder lyophilized injection according to claim 4 is characterized in that the pre-freeze temperature is-30 ℃~-50 ℃, and the pre-freeze time is 4~5 hours; Sublimation drying temperature-10 ℃~-30 ℃, 25 hours~30 hours sublimation drying time.
CN 200410017640 2004-04-13 2004-04-13 Pyrithioxine hydrochloride freeze-dried composition and its preparing method Expired - Fee Related CN1285335C (en)

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Publication number Priority date Publication date Assignee Title
CN101164619B (en) * 2006-10-20 2011-05-18 山东轩竹医药科技有限公司 Pyritinol injection with special purpose solvent
CN101810614B (en) * 2010-04-15 2012-06-20 杭州康泉德投资管理有限公司 Stable pyritinol hydrochloride composition for injection and preparation and preparation method thereof

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