Drug class

Analgesic, Neuronal-type Calcium Channel Blocker

The drug class commonly referenced as analgesic neuronal-type (or N-type) calcium channel blockers encompasses non-opioid antinociceptive agents, most notably represented by ziconotide. Read more about Analgesic, Neuronal-type Calcium Channel Blocker

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About Analgesic, Neuronal-type Calcium Channel Blocker.

The drug class commonly referenced as analgesic neuronal-type (or N-type) calcium channel blockers encompasses non-opioid antinociceptive agents, most notably represented by ziconotide.

These agents function by selectively binding to voltage-gated, presynaptic N-type calcium channels (CaV2.2) located on primary nociceptive afferent nerves within the superficial dorsal horn of the spinal cord.

This selective inhibition halts the influx of calcium and prevents the release of excitatory neurotransmitters, such as substance P and glutamate, thereby suppressing the transmission of pain signals to the brain.

Therapeutically, this class is administered intrathecally for the management of severe, intractable chronic pain in patients who are intolerant of or refractory to other treatments, including systemic analgesics and intrathecal opioids.