摘要:
Disclosed is a method for producing dosing molds, according to which two separating films (7) are contacted with each other in a defined area, an active substance-containing melt is introduced between the separating films (7) such that a pocket for receiving a portion of the melt is embodied in at least one of the separating films, and the separating films (7) are separated from each other in order to eject the portion. Preferably, a method is disclosed in which the separating films (7) are contacted with each other in the gap of two molding rolls (2, 3) which rotate in opposite directions and are provided with opposite recesses (4, 5) on the surface thereof, and into which the separating films (7) can be pressed when the active substance-containing melt is introduced so as to form pockets. The separating films (7) make it possible to avoid a direct contact between the melt and the rolls (4,5) and thus prevent the melt from adhering to the roll (2, 3). Elastically deformable separating films (7) support the ejection process as a result of the stress thereof being released after leaving the roll gap (2, 3).
摘要:
A solid pharmaceutical dosage form providing improved oral bioavailability is disclosed for inhibitors of HIV protease. In particular, the dosage form comprises a solid dispersion of at least one HIV protease inhibitor and at least one pharmaceutically acceptable water-soluble polymer and at least one pharmaceutically acceptable surfactant, said pharmaceutically acceptable water-soluble polymer having a Tg of at least about 50° C. Preferably, the pharmaceutically acceptable surfactant has an HLB value of from about 4 to about 10.
摘要:
A solid dosage form having a matrix with at least one active compound dispersed homogeneously in the matrix, which is obtainable by melting a powder mixture, wherein the powder mixture comprises at least one thermoplastic binder and a combination of highly disperse silica and at least one inorganic pigment, is described. The co-use of the highly disperse silica and the inorganic pigments leads to better flow properties of the powder mixture, has the effect of a faster release of the active compound from the dosage forms obtained, and imparts a visually pleasing appearance to the dosage forms. A process for the preparation of the dosage form is also described.
摘要:
A method is described for the production of dosage forms, which comprise a solid dispersion of a microcrystalline active substance, in which a thermoplastic polymer with a glass transition temperature Tg of at least 40° C. is melted and an active substance is dissolved homogeneously in the melt; crystallization of the active substance is initiated in the mass obtained; and the mass is cooled. Crystallization of the active substance can be initiated by adding a nonsolvent, seed crystals of the active substance or a derivatization reagent. In addition, crystallization can be initiated by holding the mass for a sufficient length of time at a temperature that is below the temperature at which the active substance is completely soluble in the mass.
摘要:
A dosage form and method for the delivery of drugs, particularly drugs of abuse, characterized by resistance to solvent extraction, tampering, crushing, or grinding, and providing an initial burst of release of drug followed by a prolonged period of controllable drug release.