Drug Development

Nov 01, 2002
Pharmaceutical Technology Europe
Dry powder inhalers (DPIs) contain a powder which, when required, is discharged and inhaled. The therapeutic drug is manufactured in powder form as small particles a few micrometres in diameter. In many DPIs, the drug is mixed with much larger sugar crystals, such as lactose, and the smaller drug particles attach to these excipient particles, improving entrainment of the drug upon inhalation. This article examines how the application and combination of versatile processes such as milling, micronizing, sieving and air classification can be used to manufacture dedicated lactose products for practically every possible combination of active and excipient blend in DPIs.
Oct 01, 2002
Pharmaceutical Technology Europe
Using melt extrusion to prepare glass solutions of poorly water-soluble drugs with hydrophilic excipients offers an exciting and advantageous alternative to existing formulation methods such as spray-drying and co-melting. Investigating potential methods to increase water solubility begins early in drug development. Techniques described in this paper show how only a small quantity of drug can be used to determine its suitability for melt extrusion, allowing the method to be considered at the same time as salt screening and particle size reduction work, and could speed up the formulation process.
Mar 01, 2002
Pharmaceutical Technology
Adhesives manufacturers can be involved in the development of transdermal drug delivery products by working with pharmaceutical companies on R&D, materials qualification, manufacturing, and other product development tasks.
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