Gabapentin 400 mg is often seen as a low to moderate dose and is frequently prescribed to help manage nerve pain, partial seizures, and sometimes even conditions like restless leg syndrome or anxiety. This dosage is typically used as a starting point in a gradual titration plan, which helps the body get used to the medication while keeping side effects to a minimum. Depending on their specific condition and what their doctor recommends, patients might take this dose once, twice, or even three times a day.