Objective: To study the efficacy of a new P preparation in aqueous solution for subcutaneous injection for inducing the predecidual transformation of the endometrium.
An effective and convenient method to administer progesterone (P) would be useful. Injections assure reliable absorption1 but are painful. Vaginal P suppositories avoid the pain of injection and are well absorbed, but suppositories sustain P levels less effectively. Suppositories are difficult to place high in the vagina and liquefy at body temperature, which leads to substantial vaginal disc…
OBJECTIVE: To determine if subcutaneous or transvaginal progesterone are preferred by patients after the use of both, based on the influence on their sexual life, global comfort and interference on their normal activities.
The use of cyclodextrin to increase the water solubility of progesterone (P) was described by Pitha as a complex with b-cyclodextrin and derivates to obtain a water soluble formulation (Pitha, J.: US patent n. 4,727,064). Hydroxypropyl-b-cyclodextrin (HPBCD) has a high water solubility which allows the solubilization of high quantity of P. Considering a 1:2 guess/host complex stoichiometry it…