Ketoconazole is also present in small concentration, among other new molecules, in a shampoo that I personally use: Revita Shampoo by DS Laboratoires. Revita Shampoo must be used daily for better results, and it also has a special conditioner, Revita Cor. I recommend the huge pack at 925 ml each bottle.
Revita Shampoo is created by DS Laboratoires in USA. It has very good reviews on every possible vendor and the special bundles can offer a many months supply. I personally bought the 925 ml combo consisting of Revita Shampoo and Revita Cor conditioner. I use the shampoo, I shower the hair and then I apply the conditioner which stays there for 2-3 minutes, then I wash again the hair. Sometimes I alternate between Revita and Pura dÓr, other great shampoo that I love using.