Befähigungsprüfung Drogisten Practice Questions - Befähigungsprüfung Drogisten (Austria) Exam

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What is the primary pharmacological mode of action of herbal drugs rich in tannins (Gerbstoffe), such as Oak bark (Quercus cortex) or Tormentil rhizome (Tormentillae rhizoma)?

Astringent and membrane-coating action through protein precipitation on superficial mucosal layers Central nervous system sedation via GABA-A receptor modulation Direct osmotic water retention in the large intestine Selective competitive inhibition of cyclooxygenase-2 (COX-2)

Correct Answer:

Astringent and membrane-coating action through protein precipitation on superficial mucosal layers

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