migraine prevention
"Have been taking for over 20 years, works good for getting less migraines and even better, helps my tremors.  However, when I switched to try the generic, it did neither.  Now my insurance wants to make me pay a fee for not being able to use the generic. A fee that equals the list price of the medicine without insurance.  I can not afford to go from 100.00 copay for a 3 month supply to 1300.00 for the same amount."