Which of the following should be used tohelp incorporate a solid (like powder) into an ointmentduringnonsterile compounding?
Emulsifying agents
Diluents
Levigating agents
Preservatives
Levigating agentsreduce theparticle sizeof powders to make themeasier to mix into an ointment base.
Common levigating agents includemineral oil, glycerin, and propylene glycol.
Why Other Options Are Incorrect:
A. Emulsifying agents?❌Help mix oil and water but do NOT help incorporate solids into ointments.
B. Diluents?❌Used toincrease bulk volume(e.g., lactose in tablets).
D. Preservatives?❌Prevent microbial growth, but do NOT help mix solids into ointments.
????Reference:USP <795> Nonsterile Compounding Guidelines.
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