Question about compounding?

[Farmercyst9]

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If you had to make an ointment and the only ingredients called for were drug powder and a base like vasoline, would it be ok to use some mineral oil too? To levigate the powder before incorporating into the vasoline

 

[confusedone23]

Dr.cutie said to never use levigating agent on the exam except aquaphor to incorporate liquid into vaseline