Afinitor is an effective treatment for certain kinds of cancers, tumors, or seizure disorders. For specific information about the success rates and effectiveness of Afinitor for your condition, see the drug’s prescribing information.The drug manufacturer’s website has success stories from people who’ve taken Afinitor for certain conditions. Choose your condition below to watch videos of these success stories.seizure disorder related to tuberous sclerosis (TS)kidney tumors related to TSbreast cancerYour results from Afinitor may differ from those seen in the videos. If you have questions about what to expect from your Afinitor treatment, talk with your doctor.