Tapentadol pharmaceutical composition for transdermal administration as well as preparation method and application of pharmaceutical composition
A transdermal drug delivery technology for tapentadol, which is applied in the field of pharmaceutical preparations and can solve problems such as poor compliance, complicated preparation process of sustained-release pellets, and inconvenient medication for patients
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Embodiment 1
[0069] Embodiment 1 Preparation of transdermal patch of tapentadol hydrochloride
[0070] (1) 5 g of tapentadol hydrochloride, 1.95 g of Soluplus, and 0.1 g of magnesium stearate were micronized, mixed uniformly to obtain a physical mixture, and 2.95 g of polyethylene glycol (molecular weight 2000) was added;
[0071] (2) Set the extrusion temperature of the twin-screw extruder to 120°C, start the screw after rising to the set temperature, add the physical mixture in step (1) to the extruder, melt and extrude, and Spherical pellets are extruded to produce amorphous particles, which are then micronized, and the particle size is controlled at about 100-150nm.
[0072] (3) Weigh 5 g of micronized amorphous particles prepared in step (2), 0.2 g of soybean lecithin, 0.03 g of cholesterol, 3 g of absolute ethanol, and 1.77 g of water;
[0073] (4) Dissolving soybean lecithin, cholesterol, and tapentad hydrochloride multiparticles in absolute ethanol, and heating to 30-45°C to disso...
Embodiment 2
[0077] Embodiment 2 Preparation of transdermal patch of tapentadol hydrochloride
[0078] (1) Micronize 6 g of tapentadol hydrochloride, 1 g of povidone (PVP-S630) and 0.13 g of magnesium stearate, and mix uniformly to obtain a physical mixture, adding 2.87 g of polyethylene glycol (molecular weight 3000);
[0079] (2) Set the extrusion temperature of the twin-screw extruder to 100°C, start the screw after rising to the set temperature, add the physical mixture in step (1) to the extruder, melt and extrude, and Spherical pellets are extruded to produce amorphous particles, which are then micronized, and the particle size is controlled at about 150-200nm.
[0080] (3) Weigh 5 g of micronized amorphous particles prepared in step (2), 0.2 g of phosphatidylcholine, 0.08 g of cholesterol, 3 g of propylene glycol, and 1.72 g of water;
[0081] (4) Dissolving phosphatidylcholine, cholesterol, and tapentad hydrochloride multiparticulates in propylene glycol, and heating to 30-45°C to...
Embodiment 3
[0085] Embodiment 3 Preparation of transdermal patch of tapentadol hydrochloride
[0086] (1) Micronize 7 g of tapentadol hydrochloride, 1.5 g of povidone (PVP-VA64), and 0.1 g of talcum powder, mix uniformly to obtain a physical mixture, and add 1.4 g of polyethylene glycol (molecular weight 4000);
[0087] (2) Set the extrusion temperature of the twin-screw extruder to 140°C, start the screw after rising to the set temperature, add the physical mixture in the step (1) to the extruder, melt and extrude, and Spherical pellets are extruded to produce amorphous particles, which are then micronized, and the particle size is controlled at about 250-300nm.
[0088] (3) Weighing 7 g of micronized amorphous particles prepared in step (2), 2 g of dipalmitoylphosphatidylcholine, 0.3 g of cholesterol, 30 g of absolute ethanol, and 60.7 g of water;
[0089] (4) Dissolving dipalmitoylphosphatidylcholine, cholesterol, and tapentad hydrochloride multiparticles in absolute ethanol, and heat...
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