Low-concentration atropine medicine-containing eye drop and preparation method thereof
A technology of atropine and eye drops, which is applied in the direction of medical formula, drug combination, drug delivery, etc., can solve the problems of unclear explanation of the use of eye drops, no clinical efficacy, eye damage, etc. Effects of myopia, avoidance of damage and stimuli
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[0048] In addition, the present invention also provides a method for preparing low-concentration atropine eye drops, which comprises the following steps:
[0049] a. The atropine drugs are formulated into an aqueous solution with a concentration of 0.001% to 1% (w / v),
[0050] b. Then add 0% to 10% (w / v) of the solute with lubricating, solubilizing and moisturizing effects to the solution obtained in step a, and mix it evenly,
[0051] c. Then add an acid-base regulator to the solution obtained in step b, and adjust its pH to 6.0 to 8.0,
[0052] d. adding an osmotic pressure buffer to the solution obtained in step c, and adjusting its osmotic pressure to 280~380mOsm / L,
[0053] e. Add thickener to the solution obtained in step d, adjust its viscosity to 6~10mps,
[0054] f. adding 0.001%-1% (w / v) of a solute having the effect of stabilizing atropine drugs to the solution obtained in step e;
[0055] g. finally adding 0%~0.1% (w / v) bacteriostatic agent and optional 0%~0.1% ...
Embodiment 1
[0060] Atropine sulfate was added to the water for injection to prepare an aqueous solution with a concentration of 0.001% (w / v), and then glycerol was added to the solution to make the concentration 0.01% (w / v). After mixing, vitamin E was added. , its concentration is 0.01% (w / v), the pH is adjusted to 7.5 with sodium carbonate-sodium bicarbonate buffer solution, the osmotic pressure is adjusted to 303 mOsm / L with sodium chloride, and the viscosity is adjusted to hydroxypropyl methylcellulose to 9.0mps, sterilized by 0.22μm membrane filtration, and then single-dose aseptic filling to obtain sterile low-concentration atropine sulfate eye drops.
Embodiment 2
[0062] The bulk drug atropine sulfate was added to water for injection to prepare an aqueous solution with a concentration of 0.01% (w / v), and polyethylene glycol was added to the solution to make the concentration 0.02% (w / v), and after mixing uniformly, Add taurine to make its concentration 1% (w / v), adjust the pH to 6.9 with sodium hydrogen phosphate-sodium dihydrogen phosphate buffer solution, adjust the osmotic pressure to 310mOsm / L with glucose, and adjust the viscosity with sodium hyaluronate It is 7.6mps, sterilized by hot pressing, and then aseptically filled with a single dose to obtain sterile low-concentration atropine sulfate eye drops.
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