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Neurontin vs Lyrica: side-by-side comparison

Neurontin (Gabapentin) 100mg capsule
Neurontin
vs
Lyrica (Pregabalin) 25mg capsule
Lyrica

Neurontin (Neurological Medications) and Lyrica (Pain Relief Medications) belong to different therapeutic classes and are rarely interchangeable. This page compares the medications' purposes, mechanisms and the situations where each is used.

Property Neurontin Lyrica
Active ingredient Gabapentin Pregabalin
Manufacturer Pfizer Pfizer
Class Neurological Medications Pain Relief Medications
Strengths 100mg, 300mg, 400mg, 600mg, 800mg 25mg, 50mg, 75mg, 100mg, 150mg, 200mg, 225mg, 300mg
Forms capsule, tablet, oral solution capsule, oral solution, extended-release tablet

What's the same

Neurontin and Lyrica are used in very different patients, and the points in common are limited. The main shared element is that both meet regulatory standards for efficacy and safety and benefit from pharmacist oversight.

Key differences

Neurontin belongs to Neurological Medications while Lyrica belongs to Pain Relief Medications. Indications, mechanisms and target populations differ. The comparison is most useful when a clinician has mentioned both medications and the patient wants to understand where each fits.

Mechanism and action

Neurontin: Gabapentin binds the alpha-2-delta auxiliary subunit of voltage-gated calcium channels in the central nervous system, reducing presynaptic calcium influx and the release of excitatory neurotransmitters such as glutamate… Lyrica: Pregabalin binds the alpha-2-delta auxiliary subunit of voltage-gated calcium channels in the central nervous system, reducing presynaptic calcium influx and the release of excitatory neurotransmitters such as glutamate…

When Neurontin is preferred

Neurontin is approved in adults and children aged 3 years and older as adjunctive therapy for partial-onset seizures, and in adults for post-herpetic neuralgia.

When Lyrica is preferred

Lyrica is approved in adults for neuropathic pain associated with diabetic peripheral neuropathy, post-herpetic neuralgia, spinal cord injury and other forms of central neuropathic pain (some markets), for generalised anxiety disorder, for fibromyalgia (in the United States and s…

Frequently asked questions

Is Neurontin or Lyrica better?

Neurontin and Lyrica are not interchangeable — they treat different conditions. Asking which is "better" is meaningful only when a clinician has weighed both for the same specific clinical scenario.

Can I switch from Neurontin to Lyrica?

Switching between Neurontin and Lyrica is rarely an appropriate decision since they belong to different classes and treat different conditions. The real question is usually whether the diagnosis calls for one medication or the other — which the prescriber resolves.

Do Neurontin and Lyrica have the same side effects?

No — they belong to different classes and have distinct side-effect profiles. Each medication has its own prescribing information.

More Neurontin comparisons

The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.