Nizoral discussions (experiences, side effects, dosages, etc...)DON T combine NEXIUM with ANTIBIOTICS-very dangerous 7th January 2006 Nizoral 1% - For Long Lasting Anti Dandruff Shampoo Use Nizoral, medically proven to be effective against Pityorosporum ovale, the organism which most skin specialists agree is the cause of dandruff. A more effective option is to eradicate the causative organism directly by using an anti-fungal agent. Nizoral is the number one choice of doctors and pharmacists, who have recommended Nizoral to millions of dandruff sufferers all over the world.