Conjugated Estrogens
Also known as: Premarin, CEE, conjugated equine oestrogens
A mixture of oestrogen compounds derived from the urine of pregnant mares. One of the most widely studied oestrogen preparations, though largely replaced in the UK by body-identical options. Still prescribed in some cases, including for women post-hysterectomy.
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Regulatory status does not mean an approach is safe or unsafe. Laws vary by country — check your local regulations.
Community Experiences
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Research Context
Research context compiled from published sources
How does Conjugated Estrogens work?
Contains a mixture of oestrogen sulphates (predominantly oestrone sulphate plus equine-specific oestrogens) which are converted to active oestrogens after oral absorption. Acts on oestrogen receptors throughout the body to relieve menopausal symptoms and protect bone density.
Research Depth
Well Studied
Extensive human research over many years, including randomized controlled trials.
Long-Term Evidence
Well Characterized
Decades of long-term safety data available from human use.
Known Interactions
Reported Contraindicated Populations
Published Dose Ranges
Dose ranges from published research. Individual dosing should be determined with your healthcare provider based on your specific circumstances.
Factual research context from published sources — not a safety assessment or recommendation. Research classifications may change as new data emerges.
Related Approaches
Other approaches tracked on Narrated.
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