Absorption of Oral Progesterone is Influenced by Vehicle and Particle Size

This clinical trial examined how oral progesterone absorption is influenced by formulation, specifically particle size and vehicle type. Seven subjects received a 200 mg dose of progesterone in different formulations: plain milled, micronized, plain milled in oil, micronized in oil, and micronized in enteric-coated capsules. Serum progesterone levels were measured