Freeze-dried foam dosage form
AssigneeR. P. Scherer Corporation
InventorJ. Desmond Davies
Life of this patent
Estimating the term…
Abstract
A method of preparing a freeze-dried foam including an active ingredient, such as a pharmaceutical, nutrient, diagnostic, insecticide or fertilizer, is disclosed.
Claims19
A method of preparing an effective unit dosage form of an active ingredient, said active ingredient being selected from the group consisting of pharmaceuticals, nutrients, vitamins, minerals, diagnostic agents, fertilizers and insecticides, comprising the following steps in combination:
- a. forming a dispersion of a gas and a solution or suspension, said solution or suspension containing said active ingredient dissolved or suspended therein;
- b. maintaining said gas in a dispersed state within said dispersion;
- and
- c. freeze-drying a unit volume of said dispersion to form a freeze-dried foam containing said active ingredient dispersed therethrough, said freeze-dried unit volume containing an effective unit dosage of said active ingredient.
A method of preparing an effective unit dosage form of a pharmaceutical composition, comprising the following steps in combination:
- a. forming a dispersion of a gas and a solution or suspension, said solution or suspension containing said pharmaceutical composition dissolved or suspended therein;
- b. maintaining said gas in a dispersed state within said dispersion;
- and
- c. freeze-drying a unit volume of said dispersion to form a freeze-dried foam containing said pharmaceutical composition dispersed therethrough, said freeze-dried unit volume containing an effective unit dosage of said pharmaceutical composition.
An effective unit dosage form of an active ingredient prepared according to a method comprising the following steps in combination:
- a. forming a dipsersion of a gas and a solution or suspension, said solution or suspension containing said active ingredient dissolved or suspended therein;
- b. maintaining said gas in a dispersed state within said dispersion;
- and
- c. freeze-drying a unit volume of said dispersion to form a freeze-dried foam containing said active ingredient dispersed therethrough, said freeze-dried unit volume containing an effective unit dosage of said active ingredient;
- said active ingredient being selected from the group consisting of pharmaceuticals, nutrients, vitamins, minerals, diagnostic agents, fertilizers and insecticides.
Dependencies are inferred from the claim text.