← Back to Patent Explorer
EP0411629A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

A process for micronizing slightly-soluble drug

Assignee: Tanabe Pharma Corp
•
Filing: 1990-08-02
•
Granted: —
•
Expires: 2010-08-02
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A process for micronizing slightly-soluble drug characterized by subjecting a mixture of said drug and a sugar or sugar alcohol to high-speed stirring comminution or impact comminution. Also provided is a pharmaceutical formulation which comprises the micronized drug.

Inventors

  • 👤 Masayoshi Samejima
  • 👤 Kazuo Noda
  • 👤 Masao Kobayashi
  • 👤 Takashi Osawa

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-29 17:08
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/14; A61K9/141; A61K9/145

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 27 words
A process for micronizing slightly-soluble drug characterized by subjecting a mixture of said drug and a sugar or sugar alcohol to high-speed stirring comminution or impact comminution.
Claim 2
Dependent Claim 27 words
A process for micronizing slightly-soluble drug characterized by subjecting a mixture of said drug and a sugar or sugar alcohol to high-speed stirring comminution or impact comminution.
Claim 3
Dependent Claim 19 words
The process of Claim 1, wherein the molecular weight of the sugar or sugar alcohol is less than 500.
Claim 4
Dependent Claim 32 words
The process of Claim 1 or 2, wherein the sugar or sugar alcohol is selected from the group consisting of xylitol, mannitol, sorbitol, arabinose, ribose, xylose, glucose, mannose, galactose, sucrose and lactose.
Claim 5
Dependent Claim 24 words
A pharmaceutical formulation which comprises, as an active ingredient, a micronized drug produced accord­ing to Claim 1 together with suitable excipients or diluents therefor.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag