Module 3 - Strategic case studies in practice

ER Polymer Layer Formulation  ER polymer layer: – Polymer-1 (release controlling, water insoluble) – Polymer-2 (pore former, water soluble) – Plasticizer B – Colorant  Formulation feasibility studies – Trial with IR pellets + ER pellets (abandoned) – Effect of Polymer 1 viscosity – Effect of Polymer 2 type – Effect of plasticizer type: Plasticizer A vs. B (hydrophobic vs. hydrophilic)

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