Gabapentin(Neurontin)

Gabapentin is a major inhibitory neurotransmitter that functions by binding to the GABA receptors located in the spinal cord. Gabapentin is also noted to bind to a novel site on voltage-sensitive Ca2+ channels. Additionally, Gabapentin is reported to demonstrate inhibition of dopamine release from caudate nucleus, prevent neuronal cell death, and is antinociceptive. It is structurally similar to GABA and is reported in various research studies to increase GABA concentrations within the brain.

Product information

CAS Number: 60142-96-3

Molecular Weight: 171.24

Formula: C9H17NO2

Synonym:

Gabapentin

Neurontin

Gabapentine

Aclonium

Convalis

Gabapentin Hexal

Gabapentin Stada

Related CAS Number:

60142-95-2 (Gabapentin HCl)

Chemical Name: 2-[1-(aminomethyl)cyclohexyl]acetic acid

Smiles: NCC1(CC(O)=O)CCCCC1

InChiKey: UGJMXCAKCUNAIE-UHFFFAOYSA-N

InChi: InChI=1S/C9H17NO2/c10-7-9(6-8(11)12)4-2-1-3-5-9/h1-7,10H2,(H,11,12)

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: Water 34 mg/mL (198.55 mM)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 ^oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 ^oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

How to use

In Vitro:

Gabapentin produces concentration-dependent inhibitions of the K(+)-induced [Ca(2+)](i) increase in fura-2-loaded human neocortical synaptosomes with IC50 of 17 mM and maximal inhibition of 37%. Gabapentin may bind to the Ca(2+) channel alpha 2 delta subunit to selectively attenuate depolarization-induced Ca(2+) influx of presynaptic P/Q-type Ca(2+) channels; this results in decreased glutamate/aspartate release from excitatory amino acid nerve terminals leading to a reduced activation of AMPA heteroreceptors on noradrenergic nerve terminals. Gabapentin produces alterations in the cytosolic and extracellular concentrations of several amino acids, including L-leucine, L-valine and L-phenylalanine, in rat cortical astrocytes and synaptosomes, effects that are postulated to be of pharmacological significance. Gabapentin reduces potassium-evoked calcium influx via voltage-gated calcium channels in a mouse pituitary cell line that constitutively expresses GABAB receptors comprising the functional gb1a–gb2 subunit heterodimer. Gabapentin can increase N-methyl-d-aspartate (NMDA)-evoked currents in GABA-positive rat dorsal horn neurones in the presence of protein kinase C, possibly by increasing the glycine sensitivity of the NMDA receptor complex. Gabapentin produces a delayed allosteric enhancement of an unspecified voltage-activated potassium current in rat dorsal root ganglion neurons.

In Vivo:

Gabapentin dose-dependently (10-100 mg/kg, p.o.) blocks both static and dynamic allodynia in the rats.

References:

1. Field MJ, et al. Pain, 1999, 80(1-2), 391-398.
2. Sills GJ, et al. Curr Opin Pharmacol, 2006, 6(1), 108-113.
3. Fink K, et al. Neuropharmacology, 2002, 42(2), 229-236.

Products are for research use only. Not for human use.