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Pregabalin - epileptic or painkiller?

Prevacid (Pregabalin, PGB)


Pregabalin is an adjunctive agent for epilepsy and a first-line agent for neuropathic pain. It also improves sleep disorders, depression, and anxiety associated with neuropathic pain. Learn the efficacy, dosage, and precautions of Pregabalin!


Pregabalin is a presynaptic voltage-gated calcium channel modulator that inhibits the calcium-dependent release of excitatory neurotransmitters by binding to the alpha2-delta subunit of voltage-dependent calcium channels in the central nervous system, thereby providing pain relief, anxiolytic and anticonvulsant effects


Pregabalin is a second-generation calcium channel modulator, with structural modifications based on gabapentin to increase the affinity for binding to the α2-δ subunit (6 times more than gabapentin), thereby reducing the excessive release of various excitatory neurotransmitters, preserving the biological activity of first-generation gabapentin, and improving its pharmacokinetic profile


Pregabalin antiepileptic


1. Adjunctive therapy for partial seizures.

(1) 75 mg once, twice a day or 50 mg once, three times a day. Depending on individual response and tolerability, the maximum amount may be increased to 600 mg a day in 2 to 3 divided doses.

(2) For patients with intractable epilepsy in which other antiepileptic drugs are ineffective, add pregabalin 150 to 600 mg a day in 2 to 3 doses.


2. Pregabalin is not used for generalized tonic-clonic seizures, which may aggravate akathisia, tonic or atonic seizures or myoclonic seizures, or suspected juvenile myoclonic epilepsy


Pregabalin against pain


Currently an internationally recognized first-line treatment for neuropathic pain


It regulates both the upstream and downstream pathways of pain transmission, modulates presynaptic voltage-dependent calcium channels, and effectively inhibits central sensitization.


Pregabalin anxiolytic


The amygdala, the main brain region of anxiety


Pregabalin acts on voltage-gated calcium channels in the amygdala and other important brain regions for anxiety, regulating neurotransmitters and relieving anxiety rapidly.

Acute treatment: control symptoms as soon as possible to achieve clinical recovery. The onset of drug treatment may vary depending on the mechanism of action, generally 1-2 weeks to start the effect, the onset of drug treatment for patients with severe anxiety and depression disorder will be extended to 2-4 weeks to take effect

Consolidation treatment: consolidation of the efficacy. The duration of consolidation therapy varies widely among patients with different disorders and is usually at least 3 to 6 months.


Maintenance treatment: Maintenance treatment usually takes 6 to 12 months. At the end of maintenance treatment, the disease is stable and can be slowly reduced until the end of treatment

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