“PO-92 QZU® (Kudzu e.s.: 200 mg of which Isoflavones: 80 mg and Puerarin: 60 mg; ComplexZyme vegan®: 40 mg) in the prophylaxys of migraine without aura: a retrospective observational study: Ennio Pucci,1 Ludovica Pucci,2 Alberto Vercesi3 | 1Department of Nervous System and Behavioral Sciences, University of Pavia; 2Nutritional biologist, Master in Nutritional and Clinical Dietetics, University of Pavia, Italy; 3Scientific Advisor” (2025) Confinia Cephalalgica [Preprint]. doi:10.4081/cc.2025.15916.