In vitro dissolutieonderzoek van geneesmiddelen: compendiale testmodellen II

Various dissolution methods, such as the flow-through cell, paddle-over-disk, cylinder, and reciprocating disk, assess a drug’s dissolution rate.

The flow-through-cell apparatus pumps the dissolution medium through a cell containing the sample, allowing continuous flow and medium replacement. It is suitable for assessing poorly soluble active compounds.

The paddle-over-disk method utilizes a disk assembly to hold transdermal patches. The setup is placed within a medium-filled dissolution flask, and a paddle stirs the medium.

The cylinder method employs a stainless steel cylinder onto which the mounted sample adheres. This is placed within the dissolution medium and is suitable for transdermal patches that cannot be cut into smaller pieces.

Lastly, the reciprocating disk method utilizes a reciprocating disk to test transdermal products. The samples are placed on disk-shaped holders that reciprocate vertically using a motor drive assembly.