Rumor vs Truth - Evidence‑Based Mythbusting for Healthcare Professionals
May 19, 2026 · 28 min · 16 segments
Gabapentin has become a go-to option across a wide range of clinical scenarios—but how well does it actually hold up under closer scrutiny? In this episode, Don Weinberger and Steve Small take a…
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Um, gabapentin started as an anti-seizure medication approved by the FDA in 1993, uh, and is strictly similar to the neurotransmitter, the gamma-aminobutyric acid, or GABA for short, right? So this neurotransmitter slows down nerve firing, uh, which can decrease dysfunctional signals in the brain that we see with seizures.
That's right, and we also see dysfunctional firing in nerve related or neuropathic pain.
Uh, that's why gabapentin is also approved for postherpetic neuralgia, or nerve pain after having shingles, which is pretty specific.
[chuckles] But the reality is gabapentin is now used far beyond seizures or postherpetic neuralgia.
In fact, about eight in 10 US gabapentin prescriptions are actually for off-label uses.
Uh, I actually see this med so often for other neuropathic conditions, I never thought of it, you know, being not approved for them.
Um, and when one medication shows up on a medication list for pain, sleep, anxiety, restless legs, you name it, becomes really easy for rumors to take root.
And I think some people see it as a cure-all, others see gabapentin as a hidden danger.
Its manufacturer paid over $400 million in the mid-2000s to settle criminal and civil lawsuits over illegal advertising for unapproved uses.
You know, things like incl- bipolar disorder, attention deficit disorder, and migraines.
Uh, but that kinda history tends to linger in the background even years later, obviously.
So between widespread off-label use, you have the mixed evidence in a lot of associated, association-based studies that don't prove cause and effect, it's no surprise gabapentin has become a magnet for bold claims.
Today, we're going to separate wh- which concerns are valid, which are overblown, and where the real caution belongs.
Um, gabapentin started as an anti-seizure medication approved by the FDA in 1993, uh, and is strictly similar to the neurotransmitter, the gamma-aminobutyric acid, or GABA for short, right? So this neurotransmitter slows down nerve firing, uh, which can decrease dysfunctional signals in the brain that we see with seizures.
That's right, and we also see dysfunctional firing in nerve related or neuropathic pain.
Uh, that's why gabapentin is also approved for postherpetic neuralgia, or nerve pain after having shingles, which is pretty specific.
[chuckles] But the reality is gabapentin is now used far beyond seizures or postherpetic neuralgia.
In fact, about eight in 10 US gabapentin prescriptions are actually for off-label uses.
Uh, I actually see this med so often for other neuropathic conditions, I never thought of it, you know, being not approved for them.
Um, and when one medication shows up on a medication list for pain, sleep, anxiety, restless legs, you name it, becomes really easy for rumors to take root.
And I think some people see it as a cure-all, others see gabapentin as a hidden danger.
Its manufacturer paid over $400 million in the mid-2000s to settle criminal and civil lawsuits over illegal advertising for unapproved uses.
You know, things like incl- bipolar disorder, attention deficit disorder, and migraines.
Uh, but that kinda history tends to linger in the background even years later, obviously.
So between widespread off-label use, you have the mixed evidence in a lot of associated, association-based studies that don't prove cause and effect, it's no surprise gabapentin has become a magnet for bold claims.
Today, we're going to separate wh- which concerns are valid, which are overblown, and where the real caution belongs.
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