Patent · US Expired

Hydrophilic theophylline powder formulation and its preparation

US4950654A · kind A · utility

22Cited by

6References

5Claims

0Family size

Assignee

BASF SE

Inventors

Dieter Horn · Heidelberg, DE
Goetz Krueger · Aachen, DE
Reinhard Spengler · Frankenthal (Pfalz), DE

Key dates

Filing date	Aug 3, 1989
Grant date	Aug 21, 1990
Priority date	—
Expiry date	Aug 3, 2009

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K9/1611
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A hydrophilic theophylline powder formulation consisting of PA0 (a) from 5 to 15% by weight of theophylline, PA0 (b) from 15 to 30% by weight of lechithin, PA0 (c) from 45 to 80% by weight of sugar, PA0 (d) from 0 to 5% by weight of a flow agent and PA0 (e) from 0 to 30% by weight of further additives, and a process for its preparation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.