Ointments Flashcards
Define ointment
Fatty preparations that are usually self-occlusive and are generally used on dry lesions
Unmedicated ointments are used as what
As emollients to soothe, smooth and hydrate dry skin conditions
What are the 4 types of bases of ointment?
Oleaginous base
Absorption base
Emulsifying base
Water-soluble base
Oleaginous base is also called
Hydrocarbon ointment base
Describe Oleaginous base
Give examples of Oleaginous base
White petrolatum
White ointment
Yellow ointment
Define absorption base
Absorption bases are used as what
As emollients ( worse than Oleaginous base)
Why are absorption bases not easily removed with water
Absorption bases are useful as what
Describe the emulsifying base
Give examples of emulsifying base
Hydrophilic ointment, USP
Describe water-soluble bases
Give examples of water-soluble bases
Polyethylene glycol (PEG), NF
What does the selection of the base depend on ?
Stability of medication in the base
Occlusion
Water wash ability
Influence on drug absorption
What is meant by stability of medication in the base
What is meant by occlusion
What is meant by water wash ability
What is meant by influence on drug absorption
