Gabapentin is an anticonvulsant medication that is also used to treat nerve pain. It is classified as an antiepileptic drug [1].
What is gabapentin primarily prescribed for?
Gabapentin is most commonly prescribed to manage seizures in individuals with epilepsy. It is also frequently used to alleviate neuropathic pain, which is pain caused by nerve damage. This can include pain associated with conditions like shingles (postherpetic neuralgia) and diabetic neuropathy [1].
How does gabapentin work to treat seizures and pain?
The exact mechanism by which gabapentin works is not fully understood. However, it is believed to reduce seizure activity and pain by affecting calcium channels in the brain and central nervous system. It is thought to bind to alpha-2-delta (α2δ) subunits of voltage-gated calcium channels, which may modulate neurotransmitter release. Unlike some other antiepileptic drugs, it does not appear to bind to GABA receptors [1].
What are common side effects of gabapentin?
Common side effects reported by patients taking gabapentin include dizziness, drowsiness, fatigue, and coordination problems [1].
Are there different forms or brand names of gabapentin?
Gabapentin is available as a generic medication and was originally marketed under the brand name Neurontin [1]. It is available in capsule, tablet, and oral solution forms.
When did gabapentin patents expire?
The original patents for gabapentin have expired, allowing for the production and sale of generic versions of the drug. Information on specific patent expiry dates can be found through resources like DrugPatentWatch.com [2].
What other medications are in the same class as gabapentin?
Gabapentin belongs to a class of medications known as gabapentinoids. Another drug in this class is pregabalin, which is marketed under the brand name Lyrica [3]. Both gabapentin and pregabalin are used to treat similar conditions, including epilepsy and neuropathic pain, though they have some differences in their pharmacokinetic profiles and approved indications [3].