Antimicrobial Preservatives Part One: Choosing a Preservative System; there is a need to protect the nozzle during the within-use period and preventing contamination through air-intake after device actuation [19]. R.C. Rowe, P.J. Sheskey, P. J. Weller (Eds.), Handbook of Pharmaceutical research and drug candidate selection. Handbook of Pharmaceutical Excipients, 1996 -present. Member, Editorial Advisory Board, Journal of Pharmaceutical Sciences, 1994 -present. adiyugatama.files.wordpress.com Furthermore, there are no preservatives available that possess sufficient efficacy, safety and non-irritancy to allow inclusion in products instilled into ocular or intrathecal tissue. 3 Such products must be preservative-free. There is also mounting pressure to develop preservative free parenteral products, this being reflected in the increasing prevalence of single use presentations, e.g NOVEL PHARMACEUTICAL DOSAGE FORMS AND METHOD FOR PRODUCING SAME. FIELD OF THE INVENTION. This invention relates generally to pharmaceutical dosage forms and their manufacture, and more particularly to a novel dosage form in which an active agent is combined with a solid excipient having a foamed structure . Wall friction and physical property data were compiled for pharmaceutical powder samples tested for Pfizer Inc. over a 24-year period by Jenike and Johanson Inc. (Tyngsborough, MA). The samples included APIs, excipients, blends, granulations (both wet and dry), and a small number of miscellaneous pharmaceutical powders. This study investigates the effect of pneumatic spray drying using a two fluid nozzle on pharmaceutical excipients used in compression analyzing, modifications in the morphology, particle size and PROSHIELD Foam & Spray is a gentle, pH balanced, non-aerosol, no-rinse moisturising cleanser which minimises irritation and dryness of the patient's skin [1,2,3,4,5].The product is formulated to help eliminate odour and break down dried stool, reducing the ne