Papaverine hydrochloride for injection and preparation method thereof
A technology of papaverine hydrochloride and injection, which is applied in the field of medicine, can solve problems such as poor stability, high water content in medicines, and affect the efficacy of medicines, and achieve the effect of enhancing stability
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Embodiment 1
[0027] An embodiment of papaverine hydrochloride for injection and its preparation method provided by the present invention, the types of components and the weight ratio of each component included in every thousand bottles of papaverine hydrochloride for injection are: papaverine hydrochloride 30g; mannitol 100g ; Dilute to 2000ml with water for injection.
[0028] The preparation process steps are as follows:
[0029] (1) Process pre-treatment: Clean the antibiotic glass bottle and the medicinal butyl rubber stopper with ultrasonic waves, and sterilize them at high temperature for later use;
[0030] (2) Dosing: take by weighing papaverine hydrochloride and mannitol of the prescription amount in the liquid preparation tank, add 80% of the prescription water to the liquid preparation tank and stir to fully dissolve papaverine hydrochloride and mannitol, and the temperature of the water for injection 9-15°C; use citric acid to adjust the pH value to 2.8-3.5, add water for inje...
Embodiment 2
[0038] As a further improvement to embodiment 1, the difference from embodiment 1 is:
[0039] (1) Process pre-treatment: Clean the antibiotic glass bottle with ultrasonic waves, rinse it with purified water and water for injection again, and sterilize it at 350°C for later use; clean the medicinal butyl rubber stopper with ultrasonic waves, then Rinse with water for injection, sterilize at 121°C for 30 minutes, dry with hot air and set aside;
[0040] (2) Dosing: Weigh papaverine hydrochloride and mannitol of the prescribed amount in the liquid mixing tank, add 80% of the prescribed amount of water for injection to the liquid mixing tank, stir for 20 minutes to fully dissolve papaverine hydrochloride and mannitol, and add water for injection The temperature of the solution is 9°C; use citric acid to adjust the pH value to 2.8, add water for injection to the full amount, and the temperature of the added water for injection is 4°C; then add 0.02% of the total weight of the solu...
Embodiment 3
[0044] The difference between this embodiment and embodiment 2 is:
[0045] (2) Dosing: take by weighing papaverine hydrochloride and mannitol of the prescription amount in the liquid preparation tank, add 80% of the prescription water to the liquid preparation tank and stir for 25 minutes to fully dissolve the papaverine hydrochloride and mannitol, the water for injection The temperature is 10°C; use citric acid to adjust the pH value to 3.0, add water for injection to the full amount, and the temperature of the added water for injection is 5°C; then add 0.02% of the total weight of the solution to absorb with activated carbon for 30 minutes and then perform decarbonization treatment; The carbon treatment includes circulating the medicinal liquid through a 5 μm titanium rod filter for 5 minutes, and then coarsely filtering through a 0.45 μm cartridge filter to obtain a filtrate.
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