Jeff takes 2000mg of Neurontin daily. He was origionally on Lyrica and it worked ok for him but the cost was too much. The Neurontin seems to work just as well for him. When he started both of these meds I noticed some affect to his cognition (alertness, comprehension, ability to get his point across) but it improved after a week or two. The Lyrica seemed worse for him but he was also on Oxycodone at the time.