These are semi-solid preparations intended for external application to the skin or mucous membrane. These are usually oily vehicles that may contains surfactant to allow them to be washed off easily. A preparation of one or more therapeutic agents in any of the various classes of bases.
Ointments
Two (2) Methods of Preparing Semi-Solids
It involves melting of the ingredients together.
Mixing by Fusion
When the base contains solids that have higher melting points. Useful for solid medicaments which are readily soluble in melted base.
Mixing by Fusion
Four (4) Types of Ointment Bases