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Progestogen Comparison · All 50 States

Micronized progesterone vs. synthetic progestins vs. the IUD: choosing endometrial protection

Progesterone options in HRT compared: micronized progesterone, medroxyprogesterone, norethindrone, and the levonorgestrel IUD — dosing, sleep effects, breast-risk signal, and bleeding patterns.

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DIRECT ANSWER

If you have a uterus and take systemic estrogen, you need a progestogen to protect the endometrium. Micronized progesterone (100 mg nightly continuously, or 200 mg for 12 days cyclically) is the usual first choice: it is bioidentical, often improves sleep, and cohort data suggest a smaller breast-risk signal than older synthetic progestins. A levonorgestrel IUD provides local protection with minimal systemic exposure and is a strong option for women who cannot tolerate oral progesterone.

Side-by-side comparison

OptionRouteTypical doseBest suited toTrade-off
Micronized progesteroneOral capsule at bedtime100 mg nightly, or 200 mg × 12 days/monthMost women needing endometrial protection; poor sleepSedation, dizziness if taken during the day; peanut-oil formulations exist
Vaginal micronized progesterone (off-label)Vaginal capsule100 mg nightlyWomen who feel over-sedated or nauseated by oral dosingOff-label for endometrial protection; less outcome data
Levonorgestrel IUDIntrauterine, replaced every 5–8 years52 mg deviceHeavy perimenopausal bleeding; contraception still neededRequires an in-person insertion procedure
Norethindrone acetateOral tablet0.35–5 mg/day depending on indicationBleeding control; fixed-dose combination patchesSynthetic progestin; mood or bloating in some women
Medroxyprogesterone acetateOral tablet2.5–10 mg/dayLegacy regimens and formulary-limited plansThe progestin used in WHI; less favorable breast-risk signal in cohort data

Doses shown are typical starting ranges for context only. Your clinician sets your dose based on your history.

How clinicians actually choose

Frequently asked questions

Do I need progesterone if I had a hysterectomy?

No. Progestogens in HRT exist to protect the uterine lining. Without a uterus, estrogen-only therapy is standard, which also avoids the progestogen-associated breast-risk signal.

Is micronized progesterone safer than synthetic progestins?

Large cohort studies, including the French E3N cohort, associate micronized progesterone with a smaller breast-cancer risk signal than synthetic progestins such as medroxyprogesterone acetate. This is observational evidence rather than randomized data, but it is why micronized progesterone is generally preferred.

Why is progesterone taken at night?

Oral micronized progesterone has sedating metabolites. Nighttime dosing turns that into a benefit for sleep and avoids daytime grogginess.

Can progesterone cream from a compounding pharmacy replace a capsule?

Not for endometrial protection. Transdermal progesterone creams do not achieve reliable endometrial levels and are not endorsed by NAMS for that purpose.

Keep comparing

HRT for sleep and insomnia →Estradiol routes compared →Bioidentical vs conventional HRT →Estradiol Comparison →Testosterone & Perimenopause →Non-Hormonal Comparison →

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Comparing providers first? How to choose an HRT telehealth provider →

WRITTEN & MEDICALLY REVIEWED BY

Kindr Health Clinical Team

Kindr Health Inc. — Editorial & Clinical Team (physician-supervised)

Kindr’s clinical content is written and reviewed by board-certified clinicians who prescribe hormone therapy every day across all 50 states — menopause-focused physicians, nurse practitioners, and pharmacists working under Kindr Health, Inc.’s organizational clinical oversight. Every page is checked against current NAMS and ACOG guidance, FDA labeling, and the primary literature before publication, then re-reviewed on a rolling schedule when guidance changes.

Organizational NPI 1609792902 · Last reviewed July 3, 2026 · Editorial policy

Educational content only — not a substitute for individual medical advice, diagnosis, or treatment.

SOURCES & REFERENCES

Every clinical claim on this page is sourced.

  1. The 2022 Hormone Therapy Position Statement of The North American Menopause Society (2022) — The North American Menopause Society (NAMS). www.menopause.org/docs/default-source/professional/nams-2022-hormone-therapy-position-statement.pdf
  2. Clinical Practice Guideline: Treatment of Menopause-Associated Vasomotor Symptoms (2023) — American College of Obstetricians and Gynecologists (ACOG). www.acog.org/clinical/clinical-guidance/clinical-practice-guideline
  3. Menopause and hormone therapy: menopausal symptoms and treatments — NIH Office on Women’s Health. www.womenshealth.gov/menopause
  4. Menopausal Hormone Therapy and Cancer Risk — National Cancer Institute (NIH). www.cancer.gov/about-cancer/causes-prevention/risk/hormones/mht-fact-sheet
  5. Estradiol — drug label and prescribing information — U.S. Food & Drug Administration, DailyMed / NLM. dailymed.nlm.nih.gov/dailymed

Information on this page is for educational purposes only. Prescription medications require clinical evaluation and provider approval. Individual results vary. Not an emergency service.

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