Marjorie, I just looked up larodopa in "Food-Medications Interactions" and find that iron supplements should be taken separately, as they may decrease drug effects. Vitamin B6 should be limited to less than 5 mg per day. Kathrynne -- Kathrynne Holden, MS, RD "Nutrition you can live with!" Medical nutrition therapy Tel: 970-493-6532 // Fax: 970-493-6538