A technical review of compounding, devolatilization, reactive processing, foaming and direct extrusion via twin screw extruders

Soft gel capsules are dosage forms that have an oblong and smooth casing that encapsulates a liquid. The soft gel casing (or gel-mass) is formulated by mixing together gelatin (or alternative material) with water, plasticizer and other ingredients. Historically, soft gel casings have been prepared in a batch mixing operation that takes many hours to complete.