Knowra Gabapentin Gabapentin Gabapentin is a prescription medication used as an adjunct for certain seizures and to treat some forms of nerve pain. It binds the α2δ subunit of voltage-gated calcium channels, altering neurotransmitter release.
Voltage-gated calcium channel : A membrane protein that opens in response to voltage changes, allowing calcium ions to enter cells. Gabapentin binds an auxiliary subunit of these channels and can reduce calcium-dependent neurotransmitter release.
Focal seizure : A seizure that begins in networks on one side of the brain. Gabapentin is used as adjunctive therapy for focal-onset seizures.
Pregabalin : A prescription medication that binds the α2δ subunit of voltage-gated calcium channels. It shares gabapentin’s target but has different pharmacokinetics, indications, and dosing.
Somnolence : A state of pronounced sleepiness or drowsiness. It is a frequent adverse effect that can impair alertness during gabapentin treatment.
α2δ subunit : An auxiliary subunit of voltage-gated calcium channels involved in channel trafficking and synaptic function. This is gabapentin’s principal binding site, distinct from the channel’s pore.
Postherpetic neuralgia : Persistent nerve pain that remains after a shingles rash has healed. Gabapentin is a commonly used treatment for this neuropathic pain condition.
Baclofen : A muscle relaxant that activates GABA-B receptors and is used for spasticity. Unlike gabapentin, baclofen’s principal action is direct activation of a GABA receptor.
Ataxia : Impaired coordination of voluntary movement, often affecting balance and gait. Unsteadiness and impaired coordination can occur, particularly at higher doses.
Synaptic vesicle : A small membrane-bound sac that stores neurotransmitters and releases them at synapses. Reduced calcium entry can alter the vesicle release that carries signals between neurons.
Diabetic neuropathy : Nerve damage caused by diabetes, often producing pain, tingling, or loss of sensation. Gabapentin is prescribed for painful diabetic neuropathy in some countries and formulations.
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