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AUTHOR
Title
3D printing of five-in-one dose combination polypill with defined immediate and sustained release profiles
[Abstract]
Year
2015
Journal/Proceedings
Journal of Controlled Release
Reftype
Groups
AbstractAbstract We have used three dimensional (3D) extrusion printing to manufacture a multi-active solid dosage form or so called polypill. This contains five compartmentalised drugs with two independently controlled and well-defined release profiles. This polypill demonstrates that complex medication regimes can be combined in a single personalised tablet. This could potentially improve adherence for those patients currently taking many separate tablets and also allow ready tailoring of a particular drug combination/drug release for the needs of an individual. The polypill here represents a cardiovascular treatment regime with the incorporation of an immediate release compartment with aspirin and hydrochlorothiazide and three sustained release compartments containing pravastatin, atenolol, and ramipril. X-ray powder diffraction (XRPD) and Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy (ATR-FTIR) were used to assess drug-excipient interaction. The printed polypills were evaluated for drug release using {USP} dissolution testing. We found that the polypill showed the intended immediate and sustained release profiles based upon the active/excipient ratio used.