CN Patent

CN104739797A — 一种释放速率递增的渗透泵片及其制备方法

Assigned to Individual · Expires 2015-07-01 · 11y expired

What this patent protects

本发明涉及一种释放速率递增的渗透泵制剂，通过在片芯外独创性地设计了一层水溶性阻滞层，并在阻滞层外再包裹一层半透性衣膜而得到一种新型的渗透泵制剂，可实现一段时间内药物呈递增释放的效果。

USPTO Abstract

本发明涉及一种释放速率递增的渗透泵制剂，通过在片芯外独创性地设计了一层水溶性阻滞层，并在阻滞层外再包裹一层半透性衣膜而得到一种新型的渗透泵制剂，可实现一段时间内药物呈递增释放的效果。

Drugs covered by this patent

methylphenidate-hydrochloride (METHYLPHENIDATE HYDROCHLORIDE)

Patent Metadata

Patent number: CN104739797A
Jurisdiction: CN
Classification: —
Expires: 2015-07-01
Drug substance claim: No
Drug product claim: No
Assignee: Individual
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.

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