https://www.selleckchem.com/pr....oducts/PD-173074.htm
Permeation studies using porcine skin were performed to test the efficacy of any selected counter ion. These preliminary studies suggest that amino acids may be used as counter ions to increase the partition and permeation of ionisable drugs.Twin-screw extruders are useful in tuning certain product characteristics due to the ability to greatly modify screw profiles as well as operating parameters. However, their use has not yet been applied to dry powder inhalation. In this study the feasibility of using a twin-screw extruder to blend
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