A pilot, open label, single dose, randomized, four-period, four-sequence, four-treatment crossover, comparative bioavailability study of UDCA PMCS 500 mg formulation 1 film-coated tablets (test 1 formulation), and UDCA PMCS 500 mg formulation 2 film-coated tablets (test 2 formulation), and UDCA PMCS 500 mg formulation 3 film-coated tablets (test 3 formulation), and reference formulation in healthy, male and female volunteers under fasting conditions.