摘要:
The invention discloses a method for preparing a powder from an aqueous liquid which comprises colloidal particles. The method is based on the use of dense-phase extraction media, i.e. near-critical or supercritical fluids. The powder obtained through the method can be reconstituted with an appropriate aqueous liquid to yield a colloidal dispersion. The method is particularly useful for drying and stabilising aqueous colloidal dispersions comprising an active compound, such as a drug substance.
摘要:
A device for treating pieces of a substrate at high pressure, piece by piece or in batches, with a treatment medium in the supercritical or near-critical state, includes a first pressure chamber, a pipe system for supplying and discharging the treatment medium, to and from the pressure chamber under high pressure and an electric motor, which is fixed to the housing in the first pressure chamber or in a second pressure chamber coupled to the first pressure chamber under the high pressure, for driving an actuator to carry out a mechanical action in the treatment medium. The electric motor is in this case open to the treatment medium and is disposed and designed to be accessible to the treatment medium, in such a manner that during the treatment of a substrate the treatment medium flows through and around the electric motor.
摘要:
The present invention relates to ready-to-use sterile, alginate-based, aqueous compositions for medical use. More particularly, the invention relates to an aqueous composition for medical use that has been sterilized by heat sterilization and having a viscosity at 25° C. of at least 300 cP) (Helipath® T F spindle, 100 rpm at 25° C.), said composition having a pH in the range of 6.5-7.5; containing 0.5-10 wt. % of an alginate salt; and further containing 10-500 mM of one or more dissolved C2-C7 mono- or dicarboxylates that are optionally substituted with up to 2 hydroxyl groups.The alginate-based composition of the present invention has excellent storage stability and is easy to manufacture. The alginate-based aqueous compositions of the present invention can advantageously be used, for instance, to prevent adhesions between a healing trauma site and adjacent surrounding tissue. These compositions can further be used in implants or in pharmaceutical preparations for oral administration.
摘要:
The present invention relates to ready-to-use sterile, alginate-based, aqueous compositions for medical use. More particularly, the invention relates to an aqueous composition for medical use that has been sterilized by heat sterilization and having a viscosity at 25° C. of at least 300 cP) (Helipath® T F spindle, 100 rpm at 25° C.), said composition having a pH in the range of 6.5-7.5; containing 0.5-10 wt. % of an alginate salt; and further containing 10-500 mM of one or more dissolved C2-C7 mono- or dicarboxylates that are optionally substituted with up to 2 hydroxyl groups.The alginate-based composition of the present invention has excellent storage stability and is easy to manufacture. The alginate-based aqueous compositions of the present invention can advantageously be used, for instance, to prevent adhesions between a healing trauma site and adjacent surrounding tissue. These compositions can further be used in implants or in pharmaceutical preparations for oral administration.
摘要:
One aspect of the invention relates to a pharmaceutical dosage unit for sublingual, buccal, pulmonary or oral administration, said dosage unit having a weight of 20-500 mg and comprising 1-80 Wt. % of a microgranulate that is distributed throughout a solid hydrophilic matrix; said microgranulate being characterised in that it: has a volume weighted average diameter of 5-100 m; contains at least 0.01 wt. %, preferably at least 0.1 wt. % of one or more water-insoluble pharmaceutically active substances; contains at least 10 wt. %, preferably at least 20 wt. % of an emulsifier component; and is capable of forming a micro-emulsion upon contact with saliva or water. The dosage units of the present invention achieve the inherent benefits of oral delivery whilst at the same time realising a high transmucosal absorption rate of the cannabinoids contained therein. Other aspects of the present invention relate to the use of the aforementioned dosage units in the therapeutic or prophylactic treatment and to a process for the manufacture of said dosage units.
摘要:
One aspect of the invention relates to a pharmaceutical dosage unit for sublingual, buccal, pulmonary or oral administration, said dosage unit having a weight of 20-500 mg and comprising 1-80 wt. % of a microgranulate that is distributed throughout a solid hydrophilic matrix; said microgranulate being characterized in that it: has a volume weighted average diameter of 5-100 m; contains at least 0.01 wt. %, preferably at least 0.1 wt. % of one or more water-insoluble pharmaceutically active substances; contains at least 10 wt. %, preferably at least 20 wt. % of an emulsifier component; and is capable of forming a micro-emulsion upon contact with saliva or water. The dosage units of the present invention achieve the inherent benefits of oral delivery while at the same time realizing a high transmucosal absorption rate of the cannabinoids contained therein. Other aspects of the present invention relate to the use of the aforementioned dosage units in the therapeutic or prophylactic treatment and to a process for the manufacture of said dosage units.
摘要:
One aspect of the present invention relates to a granulate having a volume weighted mean diameter of 1-200 m and containing: at least 0.1 wt. % of a pharmaceutically active substance; at least 10 wt. % of emulsifier 0-89.9 wt. % of a water-dispersible saccharide; the combination of the pharmaceutically active substance, the emulsifier and the water-dispersible saccharide together representing at least 60 wt. % of the granulate; wherein the granulate is monophasic or wherein the granulate comprises a dispersed phase containing the pharmaceutically active substance, said dispersed phase having a volume weighted mean diameter of less than 300 nm. Another aspect of the invention relates to a process for the preparation of said granulate containing a pharmaceutically active substance, which process employs.