Carbetocin injection and preparation method thereof
A carbetocin and injection technology, applied in the field of medicine, can solve the problems of high impurity control requirements, high content control requirements, strict quality requirements, and chemical sensitivity of carbetocin
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Embodiment 1
[0211] Embodiment 1: Preparation of carbetocin injection
[0212] formula:
[0213] Carbetocin
0.1 mg,
Dextran 40
10 mg,
pH regulator
Appropriate amount, adjust the pH value to 4.0,
Water for Injection
Appropriate amount, add to 1ml.
[0214] Preparation method:
[0215] (1) Dissolve each solid excipient and carbetocin in an appropriate amount of water for injection, so that the volume of the solution reaches 80% of the theoretical prescription volume (ie about 0.8ml, the same below);
[0216] (2) Regulate the pH value of the solution to a specified value with an acid-base regulator;
[0217] (3) Add water for injection to 1ml, add 0.05% activated carbon to the liquid medicine, absorb pyrogen for 30 minutes under stirring, decarburize and filter. The filtrate was filtered through a 0.22 μm titanium rod filter, and then sterilized and filtered through a 0.22 μm microporous membrane, and 1 ml of the liquid medicine was f...
Embodiment 2
[0235] Embodiment 2: Preparation of carbetocin injection
[0236] formula:
[0237] Carbetocin
0.1 mg,
Dextran 40
10 mg,
2.5 mg,
pH regulator
Appropriate amount, adjust the pH value to 4.0,
Water for Injection
Appropriate amount, add to 1ml.
[0238] Preparation method:
[0239] (1) Dissolve each solid excipient and carbetocin in an appropriate amount of water for injection, so that the volume of the solution reaches 80% of the theoretical prescription volume (ie about 0.8ml, the same below);
[0240] (2) Regulate the pH value of the solution to a specified value with an acid-base regulator;
[0241] (3) Add water for injection to 1ml, add 0.05% activated carbon to the liquid medicine, absorb pyrogen for 30 minutes under stirring, decarburize and filter. The filtrate was filtered through a 0.22 μm titanium rod filter, and then sterilized and filtered through a 0.22 μm microporous membrane, and 1...
Embodiment 3
[0251] Embodiment 3: Preparation of carbetocin injection
[0252] formula:
[0253] Carbetocin 2
[0254] Chlorobutanol
[0255] Prepared with reference to the method of Example 1, the injection Ex3 was obtained.
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