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Gabapentin for Hot Flashes vs Stellate Ganglion Block

A side-by-side comparison of two menopause relief methods — efficacy, cost, how they work, and who shouldn't use them.

Last verified October 11, 2026Updated October 12, 2026

Side-by-side comparison

Gabapentin for Hot Flashes An off-label gabapentin prescription that may reduce hot flashes. Pregabalin is a related gabapentinoid but is not recommended for hot flashes.
Stellate Ganglion Block An injection of local anesthetic into a nerve bundle in the neck that may interrupt hot flash signals for several months.

Method	Gabapentin for Hot Flashes An off-label gabapentin prescription that may reduce hot flashes. Pregabalin is a related gabapentinoid but is not recommended for hot flashes.	Stellate Ganglion Block An injection of local anesthetic into a nerve bundle in the neck that may interrupt hot flash signals for several months.
Efficacy	Gabapentin for Hot Flashes Recommended Recommended by the Menopause Society for symptom relief. Trial average: 45% reduction in hot flash frequency, across the whole group (not a share of people).	Stellate Ganglion Block Recommended (limited evidence) Recommended with limited evidence by the Menopause Society.
Cost	Gabapentin for Hot Flashes $9+ monthly Insurance: Varies	Stellate Ganglion Block Contact provider Insurance: Varies
Duration	Gabapentin for Hot Flashes Daily pill (ongoing)	Stellate Ganglion Block One injection; effects followed for 6 months in the main trial
Reversibility	Gabapentin for Hot Flashes Reversible	Stellate Ganglion Block Reversible
STI protection	Gabapentin for Hot Flashes No	Stellate Ganglion Block No
How it works	Gabapentin for Hot Flashes Gabapentin binds to the alpha-2-delta subunit of voltage-activated calcium channels; how this reduces hot flashes is not known. Pregabalin is structurally related to gabapentin, but NAMS 2023 does not recommend it for hot flashes.	Stellate Ganglion Block A clinician injects local anesthetic into the stellate ganglion, a nerve bundle in the neck that is part of the sympathetic nervous system. This may interrupt the temperature-regulation signals that trigger hot flashes.
Prescription	Gabapentin for Hot Flashes Required Telehealth Prescription	Stellate Ganglion Block Required In-Person Procedure
Side effects	Gabapentin for Hot Flashes Drowsiness Dizziness Fatigue Headache Weight gain Peripheral edema	Stellate Ganglion Block Drooping eyelid (Horner's syndrome, temporary) Temporary hoarseness Dizziness Rare serious complications (seizure if injected into a blood vessel, bleeding)
Who shouldn't use this	Gabapentin for Hot Flashes Hypersensitivity to gabapentin or any ingredient	Stellate Ganglion Block Active local or systemic infection Bleeding disorder Allergy to local anesthetic

Key differences

Menopause Society rating: Gabapentin for Hot Flashes, recommended; Stellate Ganglion Block, recommended (limited evidence). How long it lasts: Gabapentin for Hot Flashes, daily pill (ongoing); Stellate Ganglion Block, one injection; effects followed for 6 months in the main trial. Gabapentin for Hot Flashes: costs $9+ monthly. Stellate Ganglion Block: Contact provider.