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US 6,616,945 B1Granted
Method for making a pharmaceutical formulation
AssigneeLeiras Oy
InventorTapio Lankinen
Life of this patent
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Abstract
The invention concerns a method for preparing a physically stable and homogeneous powdered preparation containing particles of an active agent. The particles are suspended in a suspending agent in which the particles are insoluble, and the suspending agent is evaporated from the suspension. Physiologically acceptable additives such as a carrier may optionally be added to the suspension.
Claims19
A method for preparing a physically stable and homogenous powdered pharmaceutical preparation to be inhaled comprising particles of a pharmaceutical and at least one physiologically acceptable additive, said method comprising:
- suspending particles of said preparation in a suspending agent, thereby forming a suspension, wherein the particles are essentially insoluble in the suspending agent, and;
- evaporating the suspending agent from the suspension, wherein said particles comprise the particles preparation and the carrier in admixture.
Dependencies are inferred from the claim text.