I am on pregabalin and have been for about 6 years. I have 2, 25mg = 50mg at night. It works really well but I now find that it causes me to have dementure like symptoms. You can Google "does Lyrica cause dementure" for some more information. I am going to now stop using Lyrica which is the pregabalin brand that I take and go onto gabapentin hoping I can restore my brain back to where it was before taking the pregabalin.