No data are available on the rectal absorption of prednisolone hexanoate in humans. However, the extent of the rectal absorption from a similar lipophilic corticosteroid ester, fluocortolone pivalate, amounted to only about 15% of the dose with the cream and only 5% of the dose from the suppository.
No data are available on the elimination of prednisolone hexanoate in humans. It is known that corticosteroids are excreted in the urine.
In-vitro and in-vivo investigations with corticosteroid esters (halogenated and non- halogenated corticoids) have shown that these compounds are split extremely rapidly into the corticoid and fatty acid by the esterases which are ubiquitously present in the body. For this reason, after topical application and percutaneous absorption of prednisolone hexanoate, the steroid alcohol, prednisolone, becomes systemically available.
Inactivation of free prednisolone is carried out by the liver and to a small extent by the kidneys.