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Oxybutynin for Hot Flashes vs SSRIs for Hot Flashes

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 11, 2026

Side-by-side comparison

Oxybutynin for Hot Flashes An off-label anticholinergic prescription (oxybutynin), approved for overactive bladder, that can reduce moderate to severe hot flashes.
SSRIs for Hot Flashes A low-dose SSRI (paroxetine 7.5 mg) approved by the FDA for moderate-to-severe hot flashes.

Method	Oxybutynin for Hot Flashes An off-label anticholinergic prescription (oxybutynin), approved for overactive bladder, that can reduce moderate to severe hot flashes.	SSRIs for Hot Flashes A low-dose SSRI (paroxetine 7.5 mg) approved by the FDA for moderate-to-severe hot flashes.
Efficacy	Oxybutynin for Hot Flashes Recommended (limited evidence) Recommended with limited evidence by the Menopause Society.	SSRIs for Hot Flashes Recommended Recommended by the Menopause Society for symptom relief.
Cost	Oxybutynin for Hot Flashes $11–$14 monthly Insurance: Varies	SSRIs for Hot Flashes $69–$200 monthly Insurance: Varies
Duration	Oxybutynin for Hot Flashes Daily pill (ongoing)	SSRIs for Hot Flashes Daily pill (ongoing)
Reversibility	Oxybutynin for Hot Flashes Reversible	SSRIs for Hot Flashes Reversible
STI protection	Oxybutynin for Hot Flashes No	SSRIs for Hot Flashes No
How it works	Oxybutynin for Hot Flashes Oxybutynin is an anticholinergic that blocks muscarinic acetylcholine receptors, including receptors in the brain, and can decrease sweating.	SSRIs for Hot Flashes Low-dose paroxetine is a selective serotonin reuptake inhibitor (SSRI) that blocks the reuptake of serotonin. How it reduces hot flash frequency and severity is not known.
Prescription	Oxybutynin for Hot Flashes Required Telehealth Prescription	SSRIs for Hot Flashes Required Telehealth Prescription
Side effects	Oxybutynin for Hot Flashes Dry mouth (over 50% of users) Constipation Dizziness Drowsiness	SSRIs for Hot Flashes Nausea Headache Fatigue or malaise
Who shouldn't use this	Oxybutynin for Hot Flashes Uncontrolled narrow-angle glaucoma Urinary retention Gastric retention Hypersensitivity to oxybutynin or any ingredient Severe gastrointestinal disease that slows gut motility	SSRIs for Hot Flashes Current or recent MAOI use (within 14 days) Concomitant thioridazine or pimozide Pregnancy Hypersensitivity to paroxetine or any ingredient

Key differences

Menopause Society rating: Oxybutynin for Hot Flashes, recommended (limited evidence); SSRIs for Hot Flashes, recommended. Oxybutynin for Hot Flashes: costs $11–$14 monthly. SSRIs for Hot Flashes: costs $69–$200 monthly.