Gabapentin 300 mg is a drug for people who want to seek treatment with medications for neuropathic pain, epilepsy, and restless legs syndrome. the drug interferes with hormones and neurons that are involved in producing seizures and pain. Some patients purchase Gabapentin 300 mg online for the treatment of postherpetic neuralgia, fibromyalgia, or anxiety disorders. Gabapentin should be taken strictly according to the doctor’s prescription because if taken improperly it may cause side effects or result in dependence. It is always recommended to seek the services of a doctor before using Gabapentin when you are managing any illness.