Gabapentin (and its cousin pregabalin, sold as Lyrica) is one of the most commonly prescribed medicines for nerve pain. For some people it genuinely helps. But if you've been on it a while and you're dealing with fog, dizziness, or relief that never quite arrived, it's worth understanding what the evidence actually says — and knowing that a daily pill is not your only option.
A quick but important note: never stop gabapentin abruptly. It usually needs to be tapered with your prescriber. This article is about understanding your options, not changing your medication on your own.
What gabapentin does — and how well it works
Gabapentin calms overactive nerve signaling. The honest read on how well it works comes from Cochrane, the gold standard for evidence reviews: gabapentin at adequate doses "can provide good levels of pain relief to some people" with diabetic neuropathy and postherpetic neuralgia, while the evidence for other kinds of nerve pain is weak (Cochrane review: gabapentin for chronic neuropathic pain).
"Some people" is the key phrase. Many patients get partial relief or none — which is why it's reasonable as a first step, but not a reason to stop looking if it isn't working for you.
The side effects people live with
The same review quantifies the trade-off: roughly 6 in 10 people taking gabapentin experience at least one adverse event. The common ones are dizziness (about 2 in 10), drowsiness (1–2 in 10), fluid retention and swelling (about 1 in 10), and unsteadiness of gait (about 1 in 10) — and about 1 in 10 stop the drug because of side effects.
For older adults especially, unsteadiness and drowsiness aren't minor inconveniences — they raise the risk of falls. Because gabapentin works throughout the whole body, these effects come along for the ride whether or not the drug is helping your pain.
The FDA's breathing warning
There's a more serious concern that many patients are never told about. In 2019 the FDA warned that gabapentin and pregabalin can cause serious, life-threatening breathing problems in people with respiratory risk factors (FDA Drug Safety Communication). The highest-risk groups are older adults, people with reduced lung function such as COPD, and — critically — anyone also taking opioids or other medications that depress the central nervous system.
This is exactly the population that often ends up on nerve-pain medication: older, sometimes on multiple drugs. It's a strong reason to ask whether a treatment that isn't a systemic drug might fit better.
A different approach: target the signal, not the whole body
Instead of medicating your entire system every day, neurostimulation targets the specific pain pathway — and its side-effect profile is fundamentally different because nothing is circulating through your body.
Peripheral nerve stimulation (PNS) places a thin lead near the affected nerve to modulate the pain signal directly. Spinal cord stimulation (SCS) works along the spinal cord for pain that's more widespread. Both share the feature that matters most when you've been burned by side effects: they are reversible and trialed first. You wear an external device for several days, live your normal life, and only proceed to anything permanent if it clearly helps.
The evidence for this approach in nerve pain is strong and growing. In a randomized controlled trial of high-frequency SCS for painful diabetic neuropathy, 79% of stimulation patients were responders versus 5% on conventional medical management alone — and their neurological function did not worsen (randomized clinical trial, JAMA Neurology). Read more in our guide to getting relief from diabetic neuropathy in your feet.
You don't have to choose blindly
The reassuring part of the neurostimulation path is that it removes the guesswork. With a medication, you commit to weeks of daily dosing to find out whether it helps and what it costs you in side effects. With PNS or SCS, the trial period is the test — you experience the relief before making any permanent decision.
If nerve pain — or the side effects of the drugs treating it — is wearing you down, our 2-minute neuropathy assessment is a plain-language place to start, and you can explore the treatments we offer for chronic nerve pain in more detail.
