The Gabapentin duration totally depends on the patient’s conditions, along with the reason for intake. People taking Gabapentin 400 mg for anxiety will not take it as long as a patient taking it for epilepsy. If you are taking it for neuropathic pain, the pain relief window is usually a few weeks, not more than a month. However, it is usually recommended to take it for at least 12 wee... https://shopemed.com/does-gabapentin-400-mg-capsule-work-instantly/