A very informative overview by Gattefossé on its excipients and uses thereof.
Lipid excipients for suppository and pessary formulation include hard fat and hard fat with additives. These bases provide excellent physico-chemical stability and drug delivery properties covering a wide range of API, including bases optimized for the formulation of Traditional Chinese Medicines. For information on excipient application and formulation processes please see the Formulation Technologies section.