Source number

Author:Prof. Dr. med. Peter Altmeyer

Last updated on: 29.10.2020

Synonym(s)

QZ, swelling factor

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DefinitionThis section has been translated automatically.

The swelling index (QZ), also known as the swelling factor, indicates the volume that 1.0g of a drug takes up after swelling (after 4h) in a liquid containing water.

Examples of swelling coefficients of drugs: Lini semen (QZ=4,)

Plantaginis ovatae seminis tegumentum (QZ =40)

Carrageenan (QZ=18)

Malvae sylvestris flos (QZ=15)

Verbasci flos (QZ= 9.0)

Lichen islandicus (QZ=4.5)

Authors

Last updated on: 29.10.2020

Author: Prof. Dr. med. Peter Altmeyer