I posted once before about my daughter who has a headache 24 hours a day every day. The doc put her on propranolol 2 tabs a day, these didn't work so after a lot of pleading he sent her for a mri which came back clear he has now started her on topiramate as well as the propranolol. she takes 1 tab a day and in a weeks time she increases to 2 tabs. she is already suffering with side effects, finding she cant taste certain things. I wondered if anyone could help regarding the amount she would have to take for them to have an effect as so far they are not working. shes only 18 and its having a huge impact on her life and I just want to be able to help her somehow.