Meloxicam liposome and pharmaceutical composition thereof
A technology of loxicam lipid and meloxicam, which is applied in the field of medicine, can solve problems such as poor solubility, achieve the effects of improving stability, improving drug therapeutic index, and ensuring product quality
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Embodiment 1
[0036] Example 1 Preparation of meloxicam liposome
[0037] Prescription: Meloxicam 7.5g
[0039] Cholesterol 22.5g
[0040] Poloxamer 188 7.5g
[0041] Preparation Process
[0042] (1) Dissolve 7.5g meloxicam, 75g egg yolk lecithin, 22.5g cholesterol and 7.5g poloxamer 188 in 500ml acetone, mix well, remove acetone under reduced pressure on a rotary thin film evaporator to obtain phospholipids membrane;
[0043] (2) Add 800 ml of pH=5.0 phosphoric acid-dipotassium hydrogen phosphate buffer solution, shake, stir to make the phospholipid film fully hydrated, high-speed homogeneous emulsification, and obtain a liposome suspension;
[0044] (3) freeze-drying the suspension to prepare meloxicam liposomes.
Embodiment 2
[0054] Example 2 Preparation of meloxicam liposome
[0055] Prescription: Meloxicam 30g
[0056] Egg Yolk Phosphatidylserine 45g
[0057] Cholesterol 30g
[0058] Poloxamer 188 120g
[0059] Preparation Process
[0060] (1) 30g meloxicam, 45g egg yolk phosphatidylserine, 30g cholesterol and 120g poloxamer 188 were dissolved in 1500ml ethanol, mixed uniformly, and ethanol was removed under reduced pressure on a rotary thin film evaporator to obtain a phospholipid film;
[0061] (2) Add 2000ml of pH=6.0 citric acid-sodium citrate buffer solution, shake and stir to make the phospholipid film fully hydrated, high-speed homogeneous emulsification, and obtain a liposome suspension;
[0062] (3) freeze-drying the suspension to prepare meloxicam liposomes.
Embodiment 3
[0072] Example 3 Preparation of meloxicam liposome
[0073] Prescription: Meloxicam 15g
[0074] Hydrogenated egg yolk lecithin 90g
[0075] Cholesterol 30g
[0076] Poloxamer 188 45g
[0077] Preparation Process
[0078] (1) Dissolve 15g meloxicam, 90g hydrogenated egg yolk lecithin, 30g cholesterol and 45g poloxamer 188 in 800ml isopropanol, mix well, remove isopropanol under reduced pressure on a rotary thin film evaporator, and prepare Get phospholipid membrane;
[0079] (2) Add 1000ml of acetic acid-sodium acetate buffer solution with pH=5.6, shake and stir to make the phospholipid film fully hydrated, homogeneously emulsify at a high speed, and obtain a liposome suspension;
[0080] (3) freeze-drying the suspension to prepare meloxicam liposomes.
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