Relizen
An estrogen-free supplement made from Swedish flower pollen extract for menopause hot flashes.
Pollen ExtractA dietary supplement made from Swedish flower pollen that may reduce hot flashes, available over the counter.
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How well it works, what to watch for, who should avoid it, and the studies behind it.
Guideline status: Not recommended
Winther 2005 RCT (n=64): 65% responder rate for hot flash reduction at 3 months vs 38% placebo. The trial reported a 27% reduction in diary-recorded hot flushes versus placebo at 3 months. NAMS 2023 does not recommend pollen extract due to limited evidence.
Typically costs around $30-$50 per month
The exact mechanism is not fully understood. Studies suggest it may affect neurochemical pathways involved in temperature regulation, but it is not FDA-approved as a drug.
2023 Position Statement - supplements/herbal remedies are Not Recommended for hot flashes and night sweats
View GuidelinePollen extract is a dietary supplement made from Swedish flower pollen. It is sold over the counter for relief of menopause hot flashes and night sweats. The exact mechanism is not well understood, but research suggests it may affect neurochemical pathways involved in temperature regulation.
A 2005 randomized controlled trial by Winther et al. found a 65% responder rate for hot flash reduction at three months, compared to 38% with placebo. The evidence base is small, and the Menopause Society (NAMS 2023) does not recommend pollen extract because of limited data. It is sold as a dietary supplement under DSHEA, not as an FDA-approved drug.
You can buy pollen extract over the counter without a prescription. It is an option for people who want a non-prescription approach and are willing to try a supplement with modest evidence. Do not take it if you have a pollen allergy. Check our provider directory for clinics near you.