Simple English explanation with example
- It calms down overactive nerves that send “false” pain signals.
- It acts like a volume knob to turn down nerve sensitivity.
- It helps with “tingling” or “burning” pain from nerve damage.
- It can also help stabilize electrical activity to prevent seizures.
- Example: Muffling a loud alarm that won’t stop ringing unnecessarily.
Scientific Explanation
- Gabapentin is a structural analogue of GABA but does not bind GABA receptors.
- It binds to the alpha-2-delta-1 subunit of voltage-gated calcium channels.
- Reduces the calcium-dependent release of excitatory neurotransmitters like glutamate.
- Modulates the descending pain pathways to reduce central sensitization of pain.
- It crosses the blood-brain barrier via a specific amino acid transporter.