hormone

Progesterone

Also known as: Prometrium

Evidence: High · 100%
Chemical structure of Progesterone (PubChem CID 5994)
Structure via PubChem
Half-life
16 h
Typical timing
bedtime
Food rule
either
Default unit
mg

Studied for

Overview

Progesterone is a naturally occurring steroid hormone that plays a crucial role in the menstrual cycle, pregnancy, and embryonic development. Primarily produced in the ovaries after ovulation, the adrenal glands, and, during pregnancy, by the placenta, it prepares the uterus for implantation of a fertilized egg and helps maintain pregnancy. Beyond reproduction, progesterone also affects brain function, bone health, and the immune system. Synthetic versions or bioidentical progesterone are used therapeutically for various conditions, including menstrual disorders, menopausal symptoms, and as part of assisted reproductive technologies. It is available in several forms, including oral capsules, topical creams, vaginal suppositories, and intramuscular injections, though the injectable form is not covered in this context. (Source: NIH National Library of Medicine, MedlinePlus)

Deep dive

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Known interactions

  • Category rule: peptide × hormone
    Note

    Injectable peptides plus hormones can have overlapping or compounding effects that aren't always well characterized.

    Track bloodwork with a provider; don't assume combinations are neutral.

Frequently asked

Sources referenced

["American College of Obstetricians and Gynecologists","Cochrane Library","DrugBank","Examine.com","Mayo Clinic","MedlinePlus","NIH National Library of Medicine","NIH Office of Dietary Supplements (ODS)","PubChem"]

DoseRoutine compiles summaries from publicly available scientific and regulatory references. Always verify important decisions with a licensed clinician.

Cite this page

Using this in an article, AI answer, or research note? Please attribute:

DoseRoutine. (2026). Progesterone — Overview, Benefits & Side Effects. Retrieved from https://doseroutine.com/library/progesterone
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