MEDICAMENT-CONTAINING HOLLOW PARTICLE

MEDICAMENT-CONTAINING HOLLOW PARTICLE

The invention provides a particle composed of a shell and a hollow, wherein the shell contains a medicament and a polymer, and a volume ratio of the hollow relative to the whole particle is 1%-50%. The invention also provides a process for preparation of the hollow particle, which includes a step of...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: OCHIAI Yasushi, KOBIKI Mitsuaki
Format: Patent
Sprache:eng
Schlagworte:
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
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Beschreibung
Zusammenfassung:The invention provides a particle composed of a shell and a hollow, wherein the shell contains a medicament and a polymer, and a volume ratio of the hollow relative to the whole particle is 1%-50%. The invention also provides a process for preparation of the hollow particle, which includes a step of granulating a powder mixture containing a medicament and a polymer, while spraying a solvent capable of dissolving the polymer.