Progesterone may be prescribed continuously or cyclically as part of menopausal hormone therapy. The appropriate schedule depends on why it is being used, whether the patient has a uterus, the estrogen regimen, menopause stage, bleeding pattern, tolerance and individual risks.
Written and medically reviewed by David Nazarian, MD — Board Certified in Internal Medicine.
Why Is Progesterone Added to Estrogen?
For most women with an intact uterus using systemic estrogen, adequate progestogen exposure is important to reduce the risk of endometrial hyperplasia and cancer associated with unopposed estrogen. Patients who have had a hysterectomy may have different needs.
What Is Continuous Progesterone Therapy?
A continuous regimen provides progesterone or another progestogen on an ongoing schedule. It is commonly considered in postmenopausal hormone therapy when a clinician is aiming for endometrial protection without a planned monthly withdrawal bleed.
What Is Cyclic Progesterone Therapy?
With a cyclic or sequential regimen, progesterone is used for part of each treatment cycle. This may produce scheduled withdrawal bleeding and may be selected in some perimenopausal or early postmenopausal situations.
Can Progesterone Be Taken Long Term?
Duration should be individualized. The need for hormone therapy, symptom benefit, bleeding pattern, breast and cardiovascular risk factors, adverse effects and alternatives should be periodically reassessed rather than assuming one regimen is appropriate indefinitely.
What Side Effects Can Occur?
Possible effects include sedation, dizziness, breast symptoms, bloating, mood changes and bleeding changes. The profile varies by product, route and patient.
What if Bleeding Occurs on Hormone Therapy?
Bleeding patterns depend on menopause stage and regimen, but new, persistent or otherwise concerning postmenopausal bleeding requires appropriate assessment rather than simply changing the progesterone dose without evaluation.
Frequently Asked Questions
Is continuous progesterone better than cyclic progesterone?
Neither is universally better. The choice depends on clinical circumstances and patient preferences.
Do I need progesterone if I use estrogen?
Uterus status and estrogen route/dose matter. Most patients with an intact uterus using systemic estrogen need adequate endometrial protection, but the exact regimen should be prescribed individually.
Can I change my schedule on my own?
No. Changing progesterone exposure can affect bleeding and endometrial protection and should be discussed with the prescribing clinician.
Learn more at Progesterone Therapy Los Angeles and Menopause Treatment.
