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Granisetron composition for injection

A technology for composition and injection, which is applied in the direction of drug combination, non-active ingredients of polymer compounds, medical preparations containing active ingredients, etc. It can solve the problems of low absolute bioavailability, short maintenance time in vivo, strong first-pass effect, etc. problem, to achieve the effect of shortening the course of treatment, reducing the first-pass effect and improving the treatment effect

Inactive Publication Date: 2013-10-09
HAINAN WEI KANG PHARMA QIANSHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although MT has a variety of physiological functions and pharmacological effects, it has unstable oral absorption kinetics, rapid distribution and clearance, and t 1 / 2 Short (30-50min), large individual differences, strong first-pass effect, low absolute bioavailability (1%-37%), and short maintenance time in vivo (1-3h)

Method used

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  • Granisetron composition for injection
  • Granisetron composition for injection
  • Granisetron composition for injection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1, preparation of granisetron composition freeze-dried powder for injection, in 1000 pieces

[0020] 1. Prescription

[0021]

[0022] 2. Preparation process

[0023] a) Add 1 g of granisetron hydrochloride (calculated as granisetron) and 5 g of mannitol into 1500 ml of water for injection and stir to dissolve, then add 1 g of melatonin and stir evenly;

[0024] b) Add 3g of melatonin and 14.66g of moderately substituted hydroxypropyl-β-cyclodextrin into 500ml of water for injection, stir at 50°C for 6 hours, and detect that the encapsulation rate of melatonin is greater than 90%;

[0025] c) Add NaOH solution to adjust the pH value after mixing the above-mentioned group a and b solutions, add 0.1% activated carbon and stir for 30 minutes, filter out the activated carbon, filter the liquid medicine through 0.45 μm and 0.22 μm microporous membranes, and detect the content of intermediates, According to granisetron, 1mg per bottle;

[0026] d) Fill accord...

Embodiment 2

[0027] Embodiment 2, the preparation of granisetron composition freeze-dried powder for injection, in 1000 pieces

[0028] 1. Prescription

[0029]

[0030] 2. Preparation process

[0031] a) Add 1 g of granisetron hydrochloride (calculated as granisetron) and 5 g of mannitol into 1500 ml of water for injection and stir to dissolve, then add 2 g of melatonin and stir evenly;

[0032] b) Add 6g of melatonin and 29.32g of moderately substituted hydroxypropyl-β-cyclodextrin into 500ml of water for injection, stir at 50°C for 8 hours, and detect that the encapsulation rate of melatonin is greater than 90%;

[0033] c) Add NaOH solution to adjust the pH value after mixing the above-mentioned group a and b solutions, add 0.1% activated carbon and stir for 30 minutes, filter out the activated carbon, filter the liquid medicine through 0.45 μm and 0.22 μm microporous membranes, and detect the content of intermediates, According to granisetron, 1mg per bottle;

[0034] d) Fill ac...

Embodiment 3

[0035] Embodiment 3, preparation of granisetron composition freeze-dried powder for injection, in 1000 pieces

[0036] 1. Prescription

[0037]

[0038] 2. Preparation process

[0039] a) Add 1 g of granisetron hydrochloride (calculated as granisetron) and 5 g of mannitol into 1500 ml of water for injection and stir to dissolve, then add 0.6 g of melatonin and stir evenly;

[0040] b) Add 1.8g of melatonin and 8.8g of moderately substituted hydroxypropyl-β-cyclodextrin into 500ml of water for injection, stir at 50°C for 5 hours, and detect that the encapsulation rate of melatonin is greater than 90%;

[0041] c) Add NaOH solution to adjust the pH value after mixing the above-mentioned group a and b solutions, add 0.1% activated carbon and stir for 30 minutes, filter out the activated carbon, filter the liquid medicine through 0.45 μm and 0.22 μm microporous membranes, and detect the content of intermediates, According to granisetron, 1 mg per bottle;

[0042]d) Fill acco...

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Abstract

The invention provides a granisetron composition for injection and relates to the technical field of medicaments and medicament manufacturing. The main medicaments of the composition are granisetron and melatonin, wherein the melatonin comprises a quick release part and a slow release part contained in cyclodextrin. The granisetron composition for injection provided by the invention can be used for improving the treatment effect of the granisetron, avoiding instability, quick distribution and elimination and the like of MT ((Metal Thionein) caused by oral absorption, reducing the first-pass effect of the MT and reducing the dosage of the granisetron. The medicament administration design combining the quick release with the slow release satisfies physiological secretion characteristics of the MT, can be used for solving the problem that the half-life period of the MT is short, increasing the biological utilization rate of the granisetron composition, and achieving the synergism of the granisetron for treating CINV (Chemotherapy Induced Nausea And Vomiting). The quick release part and the slow release part are combined, so that not only can the CINV be treated, but also the treatment effect of the granisetron on the CINV can be improved, and therefore, the treatment course is shortened, the dosage of the granisetron is reduced, the side effect of the granisetron is lowered, and the body immunity can be improved. A certain concentration of melatonin is kept in the blood of the human body, so that the stress response of the organisms can be effectively lowered for facilitating the treatment of the CINV.

Description

Technical field: [0001] The invention relates to the technical field of medicine and medicine manufacture, in particular to a granisetron composition for injection, and more specifically, to a freeze-dried composition for injection containing granisetron and melatonin. Background technique: [0002] Because platinum, doxorubicin and other anti-tumor drugs will cause severe vomiting during the use, acute and severe nausea and vomiting may lead to dehydration, electrolyte imbalance, and malnutrition in patients, and severe cases may be caused by damage to the digestive tract mucosa. Bleeding, infection, and even death will make patients fear chemotherapy and significantly reduce their compliance. As a result, chemotherapy will be reduced or discontinued, which will seriously affect the therapeutic effect. Therefore, antiemetic drugs are important adjuvant drugs for antitumor therapy, especially The use of drugs for the treatment of moderate and severe vomiting is also mainly c...

Claims

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Application Information

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IPC IPC(8): A61K31/439A61K47/40A61K9/19A61P1/08A61K31/4045
Inventor 汪六一汪金灿郝结兵李彪吴函峰
Owner HAINAN WEI KANG PHARMA QIANSHAN
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