Diffusion Controlled Extended Release Dosage Form

**Semantic type:** Biomedical or Dental Material

**Definition:** A solid, semi-solid, solution or suspension covered with an outer permeable polymeric membrane designed to release active and/or inert ingredient(s) at a controlled, prolonged rate so as to reduce dosing frequency. Water permeates through the membrane to the core to dissolve the ingredient(s) which subsequently exit the membrane at a rate determined by their solubility and the thickness and porosity of the membrane.

**Synonyms:** - Diffusion Controlled ER - Diffusion Controlled Extended Release - Diffusion Controlled Extended Release - Diffusion Controlled Extended Release Dose Form - Diffusion Controlled XR