Pharmaceutical composition of linagliptin and salt, ester and derivative thereof as well as preparation method of pharmaceutical composition
A technology of composition and derivatives, which is applied in the direction of drug combination, pharmaceutical formula, and active ingredients of heterocyclic compounds, etc., can solve the problems of cumbersome process and uncertain amount of adhesive, and solve the problem of cumbersome process and adhesive The effect of adding indefinite amount
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Embodiment 1
[0092] Embodiment 1 Preparation of the pharmaceutical composition of the present invention
[0093]
[0094] [Preparation Process]
[0095] a, mixing linagliptin, mannitol, and hydroxypropyl cellulose to prepare a premix;
[0096] B, adding magnesium stearate to the above mixed powder for final mixing;
[0097] c, compressing the final mixture into tablet cores;
[0098] d, prepare coating suspension;
[0099] e. Coat the tablet core with the coating suspension to a weight gain of about 2-4% to produce a film-coated tablet.
Embodiment 2
[0100] Embodiment 2 Preparation of the pharmaceutical composition of the present invention
[0101]
[0102] [Preparation Process]
[0103] a, mixing linagliptin, mannitol, hydroxypropyl methylcellulose and starch to prepare a premix;
[0104] b. Wetting the premix prepared in step a by adding a wetting agent, and granulating;
[0105] c, sieving: sieve the granules prepared in step b through a 20-mesh sieve, and dry the granules below about 60°C until the required weight loss on drying reaches the range of 0.5-2%. Sieve through a 20-mesh sieve;
[0106] d, adding magnesium stearate to the granules for final mixing;
[0107] e, compressing the final mixture into tablet cores;
[0108] f. Prepare a coating suspension and coat the tablet core with the coating suspension to a weight gain of about 2-4% to produce a film-coated tablet.
Embodiment 3
[0109] Embodiment 3 Preparation of the pharmaceutical composition of the present invention
[0110]
[0111] [Preparation Process]
[0112] a, mixing linagliptin, mannitol, hydroxypropyl methylcellulose and starch to prepare a premix;
[0113] b. Wetting the premix prepared in step a by adding a wetting agent, and granulating;
[0114] c, sieving: sieve the granules prepared in step b through a 20-mesh sieve, and dry the granules below about 60°C until the required weight loss on drying reaches the range of 0.5-2%. Sieve through a 20-mesh sieve;
[0115] d, adding magnesium stearate to the granules for final mixing;
[0116] e, compressing the final mixture into tablet cores;
[0117] f. Prepare a coating suspension and coat the tablet core with the coating suspension to a weight gain of about 2-4% to produce a film-coated tablet.
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