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PTECH Pharmaceutics-I (General, Physical and Dispensing) QUESTION #3021
Question 1
What is 'Levigation' in ointment preparation?
  • Heating the base
  • Reducing particle size by grinding with a small amount of liquid✔️
  • Mixing with a mechanical stirrer
  • Adding a preservative
Correct Answer Explanation
Levigation involves grinding a powder with a small amount of a 'levigating agent' (like mineral oil) to form a smooth paste before mixing with the base.