CN Patent

CN1250370A — 鼻内给药的水悬浮液

Assigned to NICHOLAS BOARD · Expires 2000-04-12 · 26y expired

What this patent protects

人们希望将具有优良抗炎和抗过敏活性的氯替泼诺etabonate制成外用药物,但是当其制成水悬浮液时,容易发生聚集和沉淀。根据本发明,通过将氯替泼诺etabonate和微晶纤维素羧甲基纤维素钠一起制成制剂,成功地制成了具有长期稳定性的悬浮液。此外,所制得的悬浮液具有显著改善了的鼻内保留性以及没有皮肤或粘膜刺激作用。

USPTO Abstract

人们希望将具有优良抗炎和抗过敏活性的氯替泼诺etabonate制成外用药物,但是当其制成水悬浮液时,容易发生聚集和沉淀。根据本发明,通过将氯替泼诺etabonate和微晶纤维素羧甲基纤维素钠一起制成制剂,成功地制成了具有长期稳定性的悬浮液。此外,所制得的悬浮液具有显著改善了的鼻内保留性以及没有皮肤或粘膜刺激作用。

Drugs covered by this patent

Patent Metadata

Patent number
CN1250370A
Jurisdiction
CN
Classification
—
Expires
2000-04-12
Drug substance claim
No
Drug product claim
No
Assignee
NICHOLAS BOARD
Source
FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

Track this patent

Get a daily-checked alert when vulnerability score, expiry, classification, or assignee changes. Email, Slack, or Teams delivery. Pro: 50 watches, Free: 3.