CN104490831A - Ferrous sulfate composition freeze-dried tablets and preparation method thereof - Google Patents

Abstract

The invention provides ferrous sulfate composition freeze-dried tablets and a preparation method thereof, and relates to the technical field of medicine and medicine production. The ferrous sulfate composition freeze-dried tablets comprise ferrous sulfate, starch and sucrose; the starch and sucrose are used as accessories, common corn starch is processed by a heating process, the bonding and disintegration effects of the starch in the tablets can be improved, the formability of the tablets is increased, and only two accessories, namely starch and sucrose, are needed in the ferrous sulfate composition freeze-dried tablets. A freeze-drying process of two-time reduction and two-time increase is adopted for the ferrous sulfate composition freeze-dried tablets, the formability of the tablets is better through two-time reduction and two-time increase of temperature, and the dissolubility of the tablets is improved so as to improve the bioavailability of the tablets; the tablets overcome the shortcomings of common ferrous sulfate tablets, and the types and amount of accessories in the ferrous sulfate tablets are reduced; and moreover, the dissolubility and bioavailability of the tablets are high, and the curative effect and safety of clinical medication are guaranteed.

Description

A kind of ferrous sulfate composition freeze-drying sheet and preparation method thereof

Technical field

The present invention relates to medicine and medical production technical field, be specifically related to a kind of ferrous sulfate composition freeze-drying sheet and preparation method thereof.

Background technology

Ferrous sulfate is pale bluish green monoclinic crystal.There is reproducibility, for the iron deficiency anemia that a variety of causes (as chronic blood loss, malnutrition, gestation, childhood development phase etc.) causes.FeSO ₄7H ₂o, molecular weight: 278.01

In common ferrous sulfate tablet containing supplementary product kind and quantity more, generally to use filler, lubricant, disintegrating agent, adhesive, correctives etc., according to Chinese Pharmacopoeia (2010 editions) second ferrous sulfate tablet quality standard, the dissolution of ferrous sulfate tablet reached more than 70% for qualified 45 minutes time, and increasing research shows that impurity in the incompatibility of the toxic and side effects of adjuvant itself, adjuvant and principal agent, adjuvant etc. all can have an impact to the safety of medicine.

Therefore, provide one can overcome above-mentioned shortcoming, select suitable adjuvant and technique, reduce supplementary product kind and consumption in ferrous sulfate tablet, improve dissolution and the bioavailability of ferrous sulfate tablet, ensure that the safety of clinical application all has positive effect.

Traditional lyophilizing tablet can improve dissolution and bioavailability, but still need use the adjuvant such as mannitol, gelatin.And mannitol has certain biological activity, gelatin resource-constrained and perishable.

Starch is the basic adjuvant of oral solid formulation, it is polymerized by glucose molecule, and be commonly used for adhesive, diluent and disintegrating agent in tablets, it is cheap and easy to get, to human-body safety, but being used alone starch has no report as adjuvant freeze-dry process production ferrous sulfate lyophilizing sheet.

Summary of the invention

Technical problem to be solved by this invention is the defect overcoming prior art, and propose a kind of ferrous sulfate composition freeze-drying sheet and preparation method thereof further, said preparation adjuvant is few, good stability, and bioavailability is high.

Technical problem to be solved by this invention realizes by the following technical solutions:

A kind of ferrous sulfate composition freeze-drying sheet, adjuvant is done with starch and sucrose, produce with freeze-dry process, this tablet overcomes the shortcoming of above-mentioned common ferrous sulfate tablet, decrease supplementary product kind and consumption in ferrous sulfate tablet, this sheet dissolution is large, and bioavailability is high, ensure that curative effect and the safety of clinical application.

A kind of ferrous sulfate composition freeze-drying sheet, is prepared from by following raw material:

A preparation method for ferrous sulfate composition freeze-drying sheet, comprises step as follows:

A, take the starch of component amount, add a certain amount of purified water and stir, by pH adjusting agent, the pH value of solution is controlled between 3.0-4.0, be then heated to 72 DEG C, be incubated 20 minutes, make the corn starch solution of 5 ~ 15% (W/V);

B, measure purified water 45ml, boil, add 85g sucrose, stir, after dissolving, continue to be heated to 100 DEG C, filter with purified cotton, the appropriate hot distilled water of filter is cleaned, and washing liquid and filtrate merge, and let cool, add appropriate distilled water, make full dose become 100ml, stir evenly, obtain B solution;

The solution that C, the solution and the step B that steps A are obtained obtain mixes, and fully stirs 30 minutes, is down to room temperature and obtains Semen Maydis-sucrose solution;

D, take ferrous sulfate tablet 300 grams, add in 1L Semen Maydis-sucrose solution, stir 25 ~ 35 minutes;

Medicinal liquid is sub-packed in drug-containing dish after measuring ferrous sulfate content by E, medicinal liquid, each drug-containing dish dress 1.0ml;

F, the drug-containing dish that medicinal liquid is housed is put into vacuum freezing drying oven, be cooled to subzero 45 DEG C, keep 2 hours, evacuation, then 0 DEG C is warming up to gradually, keep 2 hours, then be cooled to subzero 45 DEG C, keep 2 hours, be warming up to 0 DEG C gradually again, keep 2 ~ 4 hours, then be warming up to 28 ~ 32 DEG C of dryings 4 ~ 6 hours gradually, whole process vacuum remains on 10 handkerchiefs; Finally the drug-containing dish lid of powder charge is covered tightly, and load aluminium foil bag and carry out sealing and obtain ferrous sulfate composition freeze-drying sheet.

Described starch selects corn starch, preferably the corn starch solution of 10% (W/V).

Beneficial effect of the present invention is:

The preparation method of a kind of ferrous sulfate composition freeze-drying sheet of the present invention, heating process process is carried out to common corn starch, starch bonding in tablets, disintegration can be improved, improve the mouldability of tablet, in ferrous sulfate composition freeze-drying sheet, dosage of sucrose is 8.5% (W/V), it is the hardness reinforcer of this tablet, and plays flavored action.Ferrous sulfate composition freeze-drying sheet only needs starch and sucrose two kinds of adjuvants.The freeze-dry process of two liters falls in ferrous sulfate composition freeze-drying sheet employing two, and twice cooling, twice intensification can make sheet mouldability better, which increase the dissolution of tablet, thus improve the bioavailability of tablet.

Accompanying drawing explanation

Fig. 1 is the dissolution correlation curve figure of ferrous sulfate in experiment.

Detailed description of the invention

The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment, set forth the present invention further, but following embodiment being only the preferred embodiments of the present invention, and not all.Based on the embodiment in embodiment, those skilled in the art under the prerequisite not making creative work obtain other embodiment, all belong to the protection domain of this patent.

Embodiment 1

A, take the corn starch of 100g, the purified water adding 900ml stirs, and controls 3.0-4.0, is then heated to 72 DEG C, keep 120 minutes, make the corn starch solution of 9% (W/V) by pH adjusting agent by the pH value of solution.

B, measure purified water 45ml, boil, add 85g sucrose, stir, after dissolving, continue to be heated to 100 DEG C, filter with purified cotton, the appropriate hot distilled water of filter is cleaned, and washing liquid and filtrate merge, and let cool, add appropriate distilled water, make full dose become 100ml, stir evenly, obtain B solution.

The solution that C, the solution and the step B that steps A are obtained obtain mixes, and fully stirs 30 minutes, after solution be down to room temperature obtain Semen Maydis-sucrose solution.

D, take ferrous sulfate 300g, add in 1L Semen Maydis-sucrose solution, stir 30 minutes.

Medicinal liquid is sub-packed in drug-containing dish after measuring ferrous sulfate content by E, medicinal liquid, each drug-containing dish dress 1.0ml.

F, the drug-containing dish that medicinal liquid is housed is put into vacuum freezing drying oven, be cooled to subzero 45 DEG C, keep 2 hours, evacuation, then 0 DEG C is warming up to gradually, keep 2 hours, then be cooled to subzero 45 DEG C, keep 2 hours, be warming up to 0 DEG C gradually again, keep 2 ~ 4 hours, then be warming up to 28 ~ 32 DEG C of dryings 4 ~ 6 hours gradually, whole process vacuum remains on 10 handkerchiefs.Finally the drug-containing dish lid of powder charge is covered tightly, and load aluminium foil bag and carry out sealing and obtain ferrous sulfate composition freeze-drying sheet.

Embodiment 2

A, take the corn starch of 130g, the purified water adding 900ml stirs, and controls 3.0-4.0, is then heated to 72 DEG C, keep 120 minutes, make the corn starch solution of 13% (W/V) by pH adjusting agent by the pH value of solution.

B, measure purified water 45ml, boil, add 85g sucrose, stir, after dissolving, continue to be heated to 100 DEG C, filter with purified cotton, the appropriate hot distilled water of filter is cleaned, and washing liquid and filtrate merge, and let cool, add appropriate distilled water, make full dose become 100ml, stir evenly, obtain B solution.

The solution that C, the solution and the step B that steps A are obtained obtain mixes, and fully stirs 30 minutes, after solution be down to room temperature obtain Semen Maydis-sucrose solution.

D, take 300 grams, ferrous sulfate (by 1000 calculations), add 1L Semen Maydis-sucrose solution, stir 30 minutes.

Medicinal liquid is sub-packed in drug-containing dish after measuring ferrous sulfate content by E, medicinal liquid, each drug-containing dish dress 1.0ml.

F, the drug-containing dish that medicinal liquid is housed is put into vacuum freezing drying oven, be cooled to subzero 45 DEG C, keep 2 hours, evacuation, then 0 DEG C is warming up to gradually, keep 2 hours, then be cooled to subzero 45 DEG C, keep 2 hours, be warming up to 0 DEG C gradually again, keep 2 ~ 4 hours, then be warming up to 28 ~ 32 DEG C of dryings 4 ~ 6 hours gradually, whole process vacuum remains on 10 handkerchiefs.Finally the drug-containing dish lid of powder charge is covered tightly, and load aluminium foil bag and carry out sealing and obtain ferrous sulfate composition freeze-drying sheet.

Experimental data

The ferrous sulfate composition freeze-drying sheet that above-described embodiment is obtained carries out following quality research test:

1, hardness, friability contrast test

Get ferrous sulfate composition freeze-drying sheet prepared by above-described embodiment respectively and ferrous sulfate ordinary tablet (commercially available) detects friability and hardness by " Chinese Pharmacopoeia " version in 2010 two annex X G inspection techniques, carried out comparative study, the results are shown in following table:

Sample	Hardness/N	Friability
			Execute example 1	66.6	<1％
Execute example 2	67.5	<1％
			Ordinary tablet (commercially available)	63.8	<1％

Experimental data shows, ferrous sulfate composition freeze-drying sheet and ordinary tablet (commercially available) without significant difference, meet " Chinese Pharmacopoeia " version in 2010 to the requirement of tablet on friability and hardness.

2, dissolution contrast test

(No. 1 to No. 3 is embodiment 1 to get ferrous sulfate tablet (commercially available) and each 6 of ferrous sulfate composition freeze-drying sheet, No. 4 to No. 6 is embodiment 2), press Chinese Pharmacopoeia (2010 editions) second dissolution method annex X C second method respectively, with 0.1mol/L hydrochloric acid solution 900mL for dissolution medium, rotating speed is 50 turns per minute, operate in accordance with the law, respectively through 10min, 20min, 45min, 60min, during 75min, get solution to filter, get continuous worry liquid, according to Chinese Pharmacopoeia (2010 editions) second annex IVD atomic absorption spectrophotometry, absorbance is measured at the wavelength place of 248.3nm, calculate the stripping quantity of every sheet.Result is as follows:

One, ferrous sulfate tablet (commercially available)

Two, ferrous sulfate lyophilizing sheet (No. 1 to No. 3 is embodiment 1, and No. 4 to No. 6 is embodiment 2)

Respectively with catch cropping Dissolution profiles during average dissolution pair, as Fig. 1.

Four, result judges

Judge according to Chinese Pharmacopoeia (2010 editions) second ferrous sulfate tablet quality standard, the dissolution of ferrous sulfate tablet (commercially available) reached more than 70% for qualified 45 minutes time, actual measurement is 72.3%, and ferrous sulfate lyophilizing sheet dissolution 20 minutes time reaches 71.3%.It can thus be appreciated that the time that ferrous sulfate lyophilizing sheet dissolution reaches 75% is than the time decreasing about 25 minutes of ferrous sulfate tablet (commercially available).So the ferrous sulfate lyophilizing sheet blood drug level peaking time is shorter than ferrous sulfate tablet (commercially available), and bioavailability is higher, better efficacy.

More than show and describe ultimate principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description is only preference of the present invention; be not used for limiting the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.

Claims (2)

1. a ferrous sulfate composition freeze-drying sheet, is characterized in that, is prepared from by following raw material:

2. a preparation method for ferrous sulfate composition freeze-drying sheet according to claim 1, is characterized in that, comprise step as follows:

A, take the starch of component amount, add a certain amount of purified water and stir, by pH adjusting agent, the pH value of solution is controlled between 3.0-4.0, be then heated to 72 DEG C, be incubated 20 minutes, make the corn starch solution of 5 ~ 15% (W/V);

B, measure purified water 45ml, boil, add 85g sucrose, stir, after dissolving, continue to be heated to 100 DEG C, filter with purified cotton, the appropriate hot distilled water of filter is cleaned, and washing liquid and filtrate merge, and let cool, add appropriate distilled water, make full dose become 100ml, stir evenly, obtain B solution;

The solution that C, the solution and the step B that steps A are obtained obtain mixes, and fully stirs 30 minutes, is down to room temperature and obtains Semen Maydis-sucrose solution;

D, take ferrous sulfate tablet 300 grams, add in 1L Semen Maydis-sucrose solution, stir 25 ~ 35 minutes;

Medicinal liquid is sub-packed in drug-containing dish after measuring ferrous sulfate content by E, medicinal liquid, each drug-containing dish dress 1.0ml;

F, the drug-containing dish that medicinal liquid is housed is put into vacuum freezing drying oven, be cooled to subzero 45 DEG C, keep 2 hours, evacuation, then 0 DEG C is warming up to gradually, keep 2 hours, then be cooled to subzero 45 DEG C, keep 2 hours, be warming up to 0 DEG C gradually again, keep 2 ~ 4 hours, then be warming up to 28 ~ 32 DEG C of dryings 4 ~ 6 hours gradually, whole process vacuum remains on 10 handkerchiefs; Finally the drug-containing dish lid of powder charge is covered tightly, and load aluminium foil bag and carry out sealing and obtain ferrous sulfate composition freeze-drying sheet.