Therapeutic devices incorporating water soluble glass compositio

Details Therapeutic devices incorporating water soluble glass compositio Therapeutic devices incorporating water soluble glass compositio

1986-02-13

1987-07-07

Griffin, Ronald W.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Capsules

501 11, 514770, A61K 900, A01N 1104

Patent

active

046786597

ABSTRACT:
A therapeutic material is contained in a water soluble glass having a dissolution rate that is distinctly pH sensitive, the ratio of dissolution rates between pH 2 and pH 6 being greater than 60 to 1. The glass incorporates phosphorus pentoxide as the glass former and an alkali metal oxide and one or more alkaline earth metal oxides as glass modifiers.

REFERENCES:
patent: 4350675 (1982-09-01), Drake
patent: 4449981 (1984-05-01), Drake et al.

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