Epilepsia
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Review Randomized Controlled Trial Multicenter Study Clinical Trial
Postherpetic neuralgia: role of gabapentin and other treatment modalities.
Postherpetic neuralgia (PHN) is a chronic and painful condition that may occur after a herpes zoster infection. The frequency of PHN after untreated zoster varies widely. Age is the most important risk factor for development of PHN. ⋯ Until recently, carbamazepine was the only antiepileptic drug evaluated for the treatment of PHN. Over the past few years, however, gabapentin has received increasing attention as a useful treatment for neuropathic pain. Gabapentin lacks significant drug-drug interactions and has a favorable safety profile, which makes it particularly useful for treatment of PHN.
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Randomized Controlled Trial Comparative Study Clinical Trial
Gabapentin monotherapy for the symptomatic treatment of painful neuropathy: a multicenter, double-blind, placebo-controlled trial in patients with diabetes mellitus.
Pain is the most disturbing symptom of diabetic neuropathy. Traditionally this type of pain was treated with tricyclic antidepressants which frequently have many side effects. ⋯ In addition, patients taking gabapentin had improvement of sleep scores and a number of items on mood and quality of life questionnaires. Gabapentin was tolerated well with mild and tolerable side effects.
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Gabapentin (GBP) is a antiepileptic drug (AED) indicated as adjunct therapy for treatment of partial seizures, with and without secondary generalization, in patients 12 and older with epilepsy. GBP (1-(aminomethyl) cyclohexaneacetic acid) is structurally related to gamma-aminobutyric acid (GABA), which readily crosses the blood-brain barrier. Radiolabeled GBP binds throughout the central nervous system in anatomic areas important in treatment of seizures. ⋯ Although efficacy occurs at lower levels, increased GBP doses are associated with additional efficacy. Reports suggest that initiation at 2,400 mg or 3,600 mg may not be associated with increased adverse experiences. Titration to 900 or 1,200 mg on the first day of GBP therapy appear to be well tolerated.
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For decades, antiepileptic drugs (AEDs) have been used to treat a variety of nonepileptic conditions such as chronic pain, psychiatric disorders, and movement disorders. As indicated by recent published reports, gabapentin, a relatively new AED, is useful for treating a wide range of neurologic and psychiatric conditions. Although its exact mechanism of action has yet to be determined, gabapentin is likely to have multiple effects. ⋯ It has also been reported effective as therapy for several psychiatric disorders, most notably bipolar disorder. In addition, review of the published literature reveals the usefulness of gabapentin in movement disorders, migraine prophylaxis, and cocaine dependence. Future clinical studies will provide further insight into the range of conditions for which gabapentin is effective.