Patient Education Materials for Combined Hormone Replacement Therapy (Estradiol, Progesterone, and Testosterone)
What These Medications Are For
You should take combined hormone replacement therapy (HRT) only to relieve moderate-to-severe menopausal symptoms such as hot flashes, night sweats, or vaginal dryness—not to prevent heart disease, osteoporosis, or other chronic conditions. 1
Approved Uses:
- Relief of hot flashes and night sweats (vasomotor symptoms) 1
- Treatment of vaginal dryness, painful intercourse, and urinary symptoms (genitourinary symptoms) 1
- Management of premature menopause (before age 40) or surgical menopause (removal of ovaries before natural menopause) 2, 1
NOT Approved For:
- Prevention of heart disease or stroke 2, 1
- Prevention of osteoporosis in women without symptoms 2, 1
- Prevention of dementia or cognitive decline 1
What Benefits to Expect and When
Symptom Relief Timeline:
Hot flashes and night sweats: You should notice a 75% reduction in frequency and severity within 4-8 weeks of starting therapy at the correct dose 1, 3
Vaginal dryness and painful intercourse: Improvement typically begins within 2-4 weeks, with maximum benefit at 8-12 weeks 2, 1
Sleep quality and mood: Many women report better sleep and mood within 4-6 weeks as hot flashes decrease 4
Additional Benefits (Not Primary Reasons to Take HRT):
Bone protection: HRT reduces fracture risk by 22-27%, but this benefit stops when you discontinue therapy 1
Cardiovascular effects: In women under 60 or within 10 years of menopause, transdermal estradiol may have neutral or slightly protective cardiovascular effects, but HRT should never be started solely for heart protection 2, 1
Risks You Need to Know About
For Every 10,000 Women Taking Combined Estrogen-Progesterone for One Year:
Increased risks:
- 8 additional cases of invasive breast cancer 2, 1
- 8 additional strokes 2, 1
- 8 additional blood clots in the lungs (pulmonary emboli) 2, 1
- 7 additional heart attacks 2, 1
Decreased risks:
Important Risk Factors:
Breast cancer risk:
- Does not appear until after 4-5 years of continuous use 1
- Risk increases with longer duration of therapy 2, 1
- Using micronized progesterone (instead of synthetic progestins) may lower this risk 5, 4
- If you have had a hysterectomy and take estrogen alone (no progesterone), breast cancer risk actually decreases slightly 2, 1
Blood clot and stroke risk:
- Highest in the first 1-2 years of oral estrogen therapy 1
- Transdermal (patch) estradiol does NOT increase stroke or blood clot risk, unlike oral estrogen 2, 1
- Risk is much higher if you smoke, are over 60, or are more than 10 years past menopause 1
Endometrial (uterine lining) cancer risk:
- Taking estrogen alone (without progesterone) increases uterine cancer risk 2.3 to 9.5-fold after 5-10 years 1
- Adding progesterone reduces this risk by 90% 2, 1
- If you have had a hysterectomy, you do not need progesterone 1
Common Side Effects and How to Manage Them
Estradiol Side Effects:
Breast tenderness or swelling:
- Usually improves after 2-3 months as your body adjusts 6, 7
- If persistent, your dose may need to be lowered 1
Nausea or bloating:
- More common with oral estrogen; switching to transdermal (patch) often eliminates this 2, 1
- Taking oral estrogen with food may help 6
Headaches:
- May improve by switching from oral to transdermal estrogen 2, 1
- If migraines worsen, contact your provider immediately 2
Skin irritation from patches:
- Rotate patch application sites 2
- Apply to clean, dry skin on abdomen, buttocks, or upper thigh (avoid breasts) 2
- If severe irritation occurs, consider switching to gel or oral formulation 1
Progesterone Side Effects:
Drowsiness or sedation:
- Take progesterone at bedtime to use this effect to improve sleep 1, 5
- This side effect often decreases after 4-6 weeks 5
Mood changes or irritability:
- More common with synthetic progestins (like medroxyprogesterone acetate) 5
- Micronized progesterone has fewer mood side effects 5, 4
Breakthrough bleeding or spotting:
- Common in the first 3-6 months as your body adjusts 2, 1
- Should decrease over time; if heavy or persistent bleeding occurs, contact your provider 2, 1
Testosterone Side Effects:
Acne or oily skin:
Increased facial or body hair:
Voice deepening (rare):
- Stop testosterone immediately and contact your provider if this occurs 2
When to Stop and Call Your Doctor Immediately
Stop HRT and Seek Emergency Care If You Experience:
- Sudden severe chest pain or pressure 2, 1
- Sudden shortness of breath or difficulty breathing 2, 1
- Sudden severe headache, vision changes, or difficulty speaking 2, 1
- Sudden severe leg pain, swelling, warmth, or redness (signs of blood clot) 2, 1
- Coughing up blood 2, 1
- Yellowing of skin or eyes (jaundice) 2, 1
Call Your Provider Within 24 Hours If You Experience:
- Heavy vaginal bleeding (soaking through a pad every 1-2 hours) 2, 1
- New breast lump or significant breast changes 2, 1
- Severe abdominal pain 1
- Persistent severe headaches 2, 1
- New or worsening depression or mood changes 5, 4
How Long You Should Take HRT
Use the lowest effective dose for the shortest time necessary to control your symptoms. 2, 1
General Duration Guidelines:
For natural menopause symptoms:
- Most women need HRT for 2-5 years 1
- Your provider should reassess necessity every year 2, 1
- Attempt to reduce dose or stop therapy once symptoms are controlled 1
For premature menopause (before age 40) or surgical menopause:
- Continue HRT at least until age 51 (average age of natural menopause), then reassess 1
- Longer duration is appropriate because you are replacing hormones lost prematurely 2, 1
For testosterone therapy:
- Evaluate effectiveness after 3-6 months 2
- Consider limiting to 24 months due to limited long-term safety data 2
Age-Specific Considerations:
If you are under 60 or within 10 years of menopause:
- HRT has the most favorable risk-benefit profile 1
- Standard doses are appropriate for symptom control 1
If you are over 60 or more than 10 years past menopause:
- Use the absolute lowest dose possible 1
- Strongly consider discontinuation due to increased stroke and blood clot risks 1
- Do not start HRT for the first time after age 65 1
Monitoring and Follow-Up Care
Annual Visits Should Include:
- Review of ongoing symptoms and medication adherence 2, 1
- Assessment for new contraindications (breast lumps, blood clots, stroke, heart disease) 1
- Blood pressure measurement (HRT can raise blood pressure in some women) 2
- Discussion of whether you still need HRT or can reduce the dose 2, 1
Routine Screening (Not HRT-Specific):
- Annual mammogram per standard guidelines (HRT does not change screening recommendations) 1
- Pelvic exam and Pap smear per standard guidelines 1
- Bone density testing if indicated by other risk factors 1
Laboratory Testing:
Hormone levels (estradiol, FSH, testosterone) do NOT need to be routinely monitored. 1
- Dosing is based on symptom control, not blood levels 1
- Testing may be done if symptoms are not controlled or side effects occur 2
Endometrial Monitoring (If You Have a Uterus):
- No routine ultrasound or biopsy is needed if you are taking progesterone correctly 2, 1
- Report any heavy, prolonged, or irregular bleeding to your provider 2, 1
Absolute Contraindications (You Should NOT Take HRT If You Have):
- Current or past breast cancer 2, 1
- Current or past blood clot in legs or lungs 2, 1
- Current or past stroke 2, 1
- Current or past heart attack or coronary artery disease 2, 1
- Active liver disease 2, 1
- Unexplained vaginal bleeding 1
- Known or suspected estrogen-dependent cancer 1
- Antiphospholipid syndrome or positive antiphospholipid antibodies 2, 1
- Known thrombophilic disorder (inherited clotting disorder) 1
- Pregnancy (you must use non-hormonal contraception if still at risk of pregnancy) 1
Relative Contraindications (Use with Caution):
- History of gallbladder disease (oral estrogen increases risk; transdermal is preferred) 2, 1
- Smoking over age 35 (significantly increases stroke and blood clot risk) 2, 1
- Migraine headaches (may worsen with HRT; transdermal estrogen is preferred) 2, 1
- Hypertension (transdermal estrogen is preferred; blood pressure must be monitored) 2, 1
Choosing the Right Formulation
Estradiol Options:
Transdermal (patch) estradiol is strongly preferred over oral estrogen because:
- Does NOT increase stroke risk (oral estrogen increases stroke risk by 28-39%) 2, 1
- Does NOT increase blood clot risk (oral estrogen increases risk 2-4 fold) 1
- Bypasses liver metabolism, reducing cardiovascular and gallbladder risks 2, 1
- Provides more stable hormone levels 2, 1
Standard starting dose: 50 mcg patch applied twice weekly 2, 1
Oral estradiol alternatives:
- May be used if patches cause severe skin irritation 1
- Typical dose: 1-2 mg daily 1
- Carries higher cardiovascular and clot risks than transdermal 1
Progesterone Options (Required If You Have a Uterus):
Micronized progesterone is strongly preferred over synthetic progestins because:
- Lower breast cancer risk compared to synthetic progestins 5, 4
- Lower blood clot risk compared to synthetic progestins 5
- Fewer mood side effects 5, 4
- Provides adequate endometrial protection 1, 5
Standard dose: 200 mg taken orally at bedtime 1, 5
Dosing schedules:
- Continuous daily (preferred for postmenopausal women to avoid monthly bleeding) 1
- Cyclic 12-14 days per month (may be used in perimenopause) 2, 1
Alternative synthetic progestins:
- Medroxyprogesterone acetate 2.5 mg daily or 10 mg for 12-14 days per month 1
- Higher breast cancer and blood clot risk than micronized progesterone 5
Testosterone Options:
Indications for adding testosterone:
- Persistent low libido despite adequate estrogen replacement 2
- Severe fatigue not explained by other causes 2
- Loss of muscle mass or strength 2
Formulations:
Important: Testosterone therapy for women has limited long-term safety data and should be evaluated after 3-6 months and possibly limited to 24 months 2
Compounded "Bioidentical" Hormones: What You Need to Know
FDA-approved hormone products are strongly preferred over custom-compounded preparations. 5, 3
Why Avoid Compounded Hormones:
- Not standardized (dose varies between batches and pharmacies) 5, 3
- Not FDA-approved (safety and efficacy not rigorously tested) 5, 3
- Not covered by most insurance 5
- More expensive than FDA-approved options 5
- Salivary hormone testing used by compounding pharmacies is unreliable and unnecessary 3
FDA-Approved "Bioidentical" Options:
Many FDA-approved hormone products contain bioidentical hormones (chemically identical to human hormones), including:
- Transdermal estradiol patches (Climara, Vivelle-Dot, Estraderm) 3
- Oral micronized estradiol (Estrace) 3
- Oral micronized progesterone (Prometrium) 5, 3
- Vaginal estradiol (Vagifem, Estrace cream) 3
These FDA-approved products are safer, more reliable, and equally effective as compounded preparations. 5, 3
Lifestyle Measures to Maximize Benefits and Reduce Risks
To Reduce Cardiovascular Risk:
- Stop smoking immediately (single most important intervention to reduce stroke and heart attack risk) 2, 1
- Maintain healthy blood pressure (target <130/80 mmHg) 2
- Control cholesterol and diabetes if present 2, 1
- Maintain healthy weight through diet and exercise 1
To Optimize Bone Health:
- Calcium 1,000-1,300 mg daily (from diet and supplements combined) 2, 1
- Vitamin D 800-1,000 IU daily 2, 1
- Weight-bearing exercise 30 minutes most days of the week 2, 1
- Avoid excessive alcohol (no more than 1 drink per day) 1
To Reduce Breast Cancer Risk:
- Maintain healthy weight (obesity increases breast cancer risk) 2, 1
- Limit alcohol to no more than 1 drink per day 2, 1
- Exercise regularly (150 minutes moderate activity per week) 1
- Use the lowest effective HRT dose for the shortest time necessary 1
To Manage Hot Flashes Without Increasing HRT Dose:
- Keep bedroom cool (65-68°F) and use fans 1
- Dress in layers that can be easily removed 1
- Avoid triggers: spicy foods, caffeine, alcohol, hot beverages, stress 1
- Practice stress reduction techniques (deep breathing, meditation, yoga) 1
- Consider cognitive behavioral therapy or clinical hypnosis (proven effective for hot flashes) 1
Questions to Ask Your Provider
"Am I a good candidate for HRT, or do I have any contraindications?" 1
"Should I use transdermal (patch) or oral estrogen, and why?" 2, 1
"Do I need progesterone, and should I use micronized progesterone or a synthetic progestin?" 1, 5
"What is the lowest dose that will control my symptoms?" 1
"How long do you recommend I stay on HRT?" 1
"What specific symptoms or side effects should prompt me to call you or go to the emergency room?" 1
"Are there non-hormonal alternatives I should consider?" 1
"What lifestyle changes can I make to reduce my risks while on HRT?" 1
Non-Hormonal Alternatives If HRT Is Not Right for You
For Hot Flashes:
- Selective serotonin reuptake inhibitors (SSRIs): paroxetine, venlafaxine 1
- Gabapentin 1
- Cognitive behavioral therapy 1
- Clinical hypnosis 1
For Vaginal Dryness:
- Low-dose vaginal estrogen (minimal systemic absorption, can be used even if systemic HRT is contraindicated) 2, 1
- Vaginal moisturizers (used regularly, not just before intercourse) 1
- Vaginal lubricants (used during intercourse) 1
For Bone Health:
- Bisphosphonates (alendronate, risedronate) 1
- Denosumab 1
- Weight-bearing exercise and calcium/vitamin D supplementation 2, 1
Key Takeaways
HRT is for symptom relief, not disease prevention. Do not take HRT solely to prevent heart disease, osteoporosis, or dementia. 2, 1
Transdermal estradiol is safer than oral estrogen because it does not increase stroke or blood clot risk. 2, 1
If you have a uterus, you must take progesterone with estrogen to prevent uterine cancer. Micronized progesterone is preferred over synthetic progestins. 1, 5
Use the lowest effective dose for the shortest time necessary. Your provider should reassess your need for HRT every year. 2, 1
The risk-benefit profile is most favorable if you are under 60 or within 10 years of menopause. If you are older or further from menopause, risks increase significantly. 1
Stop HRT immediately and seek emergency care if you develop chest pain, shortness of breath, severe headache, leg pain/swelling, or vision changes. 2, 1
Avoid custom-compounded "bioidentical" hormones. FDA-approved products are safer, more reliable, and equally effective. 5, 3
Lifestyle modifications are essential: stop smoking, maintain healthy weight, exercise regularly, and optimize bone health with calcium and vitamin D. 2, 1