A kind of clindamycin phosphate composition for injection and preparation method thereof
A technology of clindamycin phosphate and composition, which is applied in the field of clindamycin phosphate composition for injection and its preparation, can solve the problems of decarbonization and filtration difficulties, and achieve the effect of excellent freeze-dried structure
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Embodiment 1
[0089] prescription:
[0090] Clindamycin Phosphate 3660g
[0091] Sodium hydroxide 146.4g
[0092] Add water for injection to 20Kg
[0093] Preparation: Weigh clindamycin phosphate and sodium hydroxide, put them in a preparation tank, add water for injection, stir to dissolve completely and mix evenly;
[0094] Decarbonization and sterile filtration: Add 0.3% activated carbon for needles by weight of the liquid medicine, continue to stir, heat the liquid medicine to 35°C and keep it warm for 20 minutes, connect a titanium rod filter and a 0.22 μm microporous filter in series, and decarbonize Simultaneously carry out sterile filtration;
[0095] Sterile packaging: the clindamycin phosphate solution filtered into the sterile room is divided into 2 ml / bottle into vials, and half stoppered;
[0096] Vacuum Freeze Drying:
[0097] a. Pre-freezing: Put the subpackaged clindamycin phosphate liquid in a freeze dryer to rapidly reduce the product temperature. When the product tem...
Embodiment 2
[0104] prescription:
[0105] Clindamycin Phosphate 3660g
[0106] Sodium hydroxide 140.8g
[0107] Add water for injection to 20Kg
[0108] Preparation: Weigh clindamycin phosphate and sodium hydroxide, put them in a preparation tank, add water for injection, stir to dissolve completely and mix evenly;
[0109] Decarbonization and sterile filtration: Add 0.3% activated carbon for needles by weight of the liquid medicine, continue to stir, heat the liquid medicine to 35°C and keep it warm for 20 minutes, connect a titanium rod filter and a 0.22 μm microporous filter in series, and decarbonize Simultaneously carry out sterile filtration;
[0110] Sterile packaging: the clindamycin phosphate solution filtered into the sterile room is divided into 2 ml / bottle into vials, and half stoppered;
[0111] Vacuum Freeze Drying:
[0112] a. Pre-freezing: Put the subpackaged clindamycin phosphate liquid into the freeze dryer to rapidly reduce the temperature of the product. When the ...
Embodiment 3
[0119] prescription:
[0120] Clindamycin Phosphate 3660g
[0121] Sodium hydroxide 152.5g
[0122] Add water for injection to 20Kg
[0123] Preparation: Weigh clindamycin phosphate and sodium hydroxide, put them in a preparation tank, add water for injection, stir to dissolve completely and mix evenly;
[0124] Decarbonization and sterile filtration: Add 0.3% activated carbon for needles by weight of the liquid medicine, continue to stir, heat the liquid medicine to 35°C and keep it warm for 20 minutes, connect a titanium rod filter and a 0.22 μm microporous filter in series, and decarbonize Simultaneously carry out sterile filtration;
[0125] Sterile packaging: the clindamycin phosphate solution filtered into the sterile room is divided into 2 ml / bottle into vials, and half stoppered;
[0126] Vacuum Freeze Drying:
[0127] a. Pre-freezing: Put the subpackaged clindamycin phosphate liquid into the freeze dryer to rapidly reduce the temperature of the product. When the te...
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