An older woman putting on a hormone cream on her shoulder

Hormone Replacement Therapy

Individualized hormone therapy guided by advanced lab work and ongoing physician monitoring.

At Three Rivers Medicine in St. Louis and Creve Coeur, Missouri, our physician-led primary care hormone replacement therapy (HRT) focuses on evidence-based, medically supervised hormone management for adults experiencing symptoms related to declining or imbalanced hormone levels. Our approach is rooted in comprehensive primary care, ensuring hormone therapy decisions are integrated with your overall health status, chronic disease management, preventive planning, and long-term wellness.

Hormones play a central role in many body systems — metabolic function, mood regulation, energy, sexual health, bone density, and cognitive performance. Research indicates that up to 30% of adults over age 40 experience clinically significant hormone imbalance symptoms that may benefit from evaluation and structured management. Without proper physician oversight, HRT can be ineffective or risk adverse effects such as cardiovascular strain or metabolic disruption.

Hormone replacement therapy at Three Rivers Medicine is delivered as part of your ongoing primary care — not as a standalone prescription. This ensures labs are interpreted in context, medical history is considered, and treatment is updated based on your changing health profile. We avoid simplistic “one-size-fits-all” hormone panels and instead use clinical judgment to guide testing, dosing, and monitoring over time.

What Is Hormone Replacement Therapy?

Hormone replacement therapy (HRT) refers to medical treatments designed to restore or balance hormone levels that decline due to aging, surgical removal of hormone-producing organs, chronic illness, or endocrine dysregulation. The most commonly addressed hormones include estrogen, progesterone, testosterone, thyroid hormones, and, in select cases, adrenal support.

HRT can alleviate symptoms like fatigue, mood changes, low libido, weight fluctuations, sleep disruption, and cognitive challenges when appropriately prescribed. However, hormone systems are complex and highly individual. Effective HRT requires careful diagnosis, thoughtful dosing, and ongoing clinical oversight — all of which are cornerstones of physician-led primary care.

Why Primary Care-Led HRT Matters

Many clinics or direct-to-consumer programs focus solely on dispensing hormones with minimal medical evaluation or follow-up. Hormone replacement therapy without proper clinical context can lead to imbalanced dosing, missed diagnoses, or unintended side effects. Primary care physicians are uniquely positioned to:

  • Review your full medical and medication history
  • Interpret labs in context with symptoms and risk factors
  • Assess cardiovascular, metabolic, and endocrine health
  • Coordinate care across specialties when needed
  • Monitor treatment response and side effects over time

Evidence supports that structured, physician-managed hormone therapy leads to better health outcomes and fewer complications than unsupervised or episodic care. For adults considering HRT as part of overall wellness, primary care integration ensures continuity and safety.

Three Rivers Medicine also offers concierge medicine, enhancing this approach with extended visits, preventive planning focus, and personalized follow-up tailored to you.

How Primary Care-Based HRT Works

Step 1: Detailed Symptom and Medical Review

Your physician begins with a thorough evaluation of symptoms, medical history, and prior lab work. This assessment clarifies whether symptoms likely relate to hormone changes or other underlying conditions.

Step 2: Targeted Diagnostic Testing

Not every patient requires extensive hormone panels. Labs are ordered selectively to clarify clinical questions and rule out other causes such as thyroid dysfunction, adrenal imbalance, chronic inflammation, or metabolic issues. This prevents unnecessary testing and avoids misinterpretation of results.

Step 3: Personalized Treatment Planning

If hormone replacement is indicated, your physician designs a tailored regimen based on your symptoms, lab findings, risk profile, and personal goals. This plan may include bio-identical or conventional formulations, administered via appropriate delivery methods.

Step 4: Ongoing Monitoring and Adjustment

Hormone therapy is dynamic. Regular follow-up visits and labs allow your clinician to adjust dosing, monitor effectiveness, and reduce risk of side effects such as cardiovascular strain, hematologic changes, or metabolic disruptions.

Schedule a Complimentary Consultation During this brief, no-obligation call, you will speak with a clinician, review your symptoms, and determine next steps in evaluation or care planning.

Evidence and Best Practices in Hormone Therapy

Clinical evidence supports the value of physician-supervised hormone replacement therapy when indicated and monitored appropriately. Hormones influence multiple systems in the body, and imbalances are associated with metabolic shifts, decreased bone density, mood disorders, and cardiovascular risk. In adults receiving structured HRT with primary care oversight, studies have shown improvements in quality of life metrics and symptom burden versus unsupervised supplementation approaches.

Hormone therapy decisions in primary care take into account not only symptom relief, but also long-term health planning and risk mitigation. This contrasts with feature-driven or test-panel marketing often seen outside of medical settings.

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Frequently Asked Questions

What are early signs of perimenopause?

Perimenopause often begins years before periods actually stop — sometimes in a woman's late 30s or early 40s — and the early signs can be surprisingly subtle. Irregular cycles are the most recognized indicator, but many women first notice disrupted sleep, increased anxiety, brain fog, unexplained mood shifts, or difficulty managing stress in ways that feel unfamiliar. Hot flashes and night sweats may or may not be present early on.

Other common early signs include joint stiffness, changes in skin and hair, a shift in body composition (especially around the midsection), decreased libido, and fatigue that doesn't respond to more sleep. Because these symptoms overlap with stress, thyroid problems, depression, and other conditions, many women spend months or years being told they're "just stressed" or "too young for menopause."

At Three Rivers Concierge Medicine in St. Louis, Dr. Shoemaker takes these symptoms seriously regardless of your age and evaluates the full picture — including hormone levels, thyroid function, metabolic health, and lifestyle factors — to determine what's actually driving them.

When should I consider hormone replacement therapy?

The best time to consider HRT is when perimenopausal or menopausal symptoms are meaningfully affecting your quality of life and conservative measures — sleep hygiene, stress management, exercise, dietary changes — aren't providing sufficient relief. Common triggers include persistent hot flashes, night sweats that disrupt sleep, vaginal dryness, significant mood changes, and bone density concerns.

Current medical evidence supports initiating HRT within 10 years of menopause onset or before age 60 for most women, as this window offers the most favorable benefit-to-risk profile. However, the decision is highly individual and depends on your symptom severity, personal health history, family history, and risk factors.

At Three Rivers Concierge Medicine, Dr. Shoemaker doesn't default to hormones for every patient, nor does she dismiss them as too risky. She evaluates where you are in the transition, how your symptoms affect your daily life, and what your complete health profile looks like — then makes a recommendation grounded in evidence and tailored to you.

What is the difference between HRT and bioidentical hormones?

This is one of the most confusing topics in women's health, partly because the terminology has been shaped more by marketing than by medicine.

Conventional HRT refers to FDA-approved hormone preparations — both synthetic and plant-derived — that have been tested in large clinical trials for safety and efficacy. Many of the most commonly prescribed options (including estradiol patches and micronized progesterone) are chemically identical to the hormones your body produces.

"Bioidentical hormones" is a term most often associated with compounding pharmacies that create custom hormone formulations. While the hormones themselves may be structurally identical to human hormones, compounded preparations are not FDA-regulated, meaning there's less standardization in dosing, purity, and consistency.

The practical distinction that matters most: FDA-approved bioidentical options (like estradiol and micronized progesterone) give you molecular accuracy with regulatory oversight. Compounded formulations offer customization but with less quality control. At Three Rivers Concierge Medicine, Dr. Shoemaker prescribes evidence-based hormone therapies and helps you understand the real differences — not the marketing spin.

Is HRT safe long-term?

The safety of long-term HRT has been significantly clarified since the early 2000s, when the Women's Health Initiative study created widespread fear that has since been put into better context. Current evidence shows that for most women who start HRT within 10 years of menopause onset, the benefits — symptom relief, bone protection, cardiovascular support, and quality of life — generally outweigh the risks.

Long-term safety depends on several factors: the type of hormones used, the delivery method (transdermal estrogen carries lower clotting risk than oral), your personal and family health history, and how closely your treatment is monitored. The risks are not zero, but they are often smaller than the risks of leaving significant menopausal symptoms untreated — including accelerated bone loss, cardiovascular changes, and long-term effects of chronic sleep disruption.

At Three Rivers Concierge Medicine, Dr. Shoemaker reviews your health profile thoroughly, chooses the lowest effective dose, and monitors your response with regular follow-up — adjusting or discontinuing treatment when the clinical picture warrants it. Long-term safety requires long-term physician oversight, not a set-it-and-forget-it prescription.

Can hormone therapy help with weight gain?

Hormonal shifts during perimenopause and menopause can contribute to weight gain — particularly the redistribution of fat toward the midsection — and hormone therapy can help address the hormonal component of that change. Restoring estrogen levels may improve insulin sensitivity, reduce visceral fat accumulation, and support the metabolic rate that naturally declines during the transition.

However, HRT alone is rarely sufficient for significant weight loss. Menopausal weight gain is driven by multiple factors — hormonal changes, loss of muscle mass, changes in sleep quality, increased stress, and shifts in activity level — and the most effective approach addresses all of them together.

At Three Rivers Concierge Medicine in Creve Coeur, Dr. Shoemaker takes a comprehensive approach: evaluating your hormone levels alongside metabolic markers, thyroid function, body composition, sleep quality, and lifestyle factors. If HRT is appropriate, it's one piece of a broader strategy — not a standalone weight loss solution. For patients who need more targeted weight management support, she also offers physician-supervised medical weight loss programs.

Does HRT help with brain fog and mood swings?

Yes — for many women, brain fog and mood instability are among the symptoms most responsive to hormone therapy. Estrogen has well-documented effects on neurotransmitter function, including serotonin and dopamine, and declining levels during perimenopause can directly impact cognitive clarity, emotional regulation, memory, and the ability to concentrate.

Many women describe feeling like they've "lost themselves" mentally and emotionally during perimenopause — struggling with word recall, decision-making, anxiety, or irritability that feels disproportionate to their circumstances. These symptoms are frequently misdiagnosed as depression or anxiety disorders, leading to prescriptions for SSRIs or benzodiazepines that don't address the underlying hormonal cause.

At Three Rivers Concierge Medicine, Dr. Shoemaker evaluates whether your cognitive and mood symptoms are hormonally driven before recommending treatment. If they are, many patients report noticeable improvement in mental clarity and emotional stability within the first few weeks of starting appropriately dosed hormone therapy. If other factors are contributing — sleep disruption, thyroid dysfunction, chronic stress — she addresses those as well.

What are the risks of not treating menopause symptoms?

This is a question that doesn't get asked often enough. While menopause is a natural transition, leaving significant symptoms untreated carries real health consequences that extend beyond comfort.

Bone health: Estrogen is critical for maintaining bone density. The accelerated bone loss that begins at menopause increases fracture risk — and osteoporotic fractures in older women carry serious morbidity and mortality.

Cardiovascular health: Estrogen has protective effects on blood vessel function and cholesterol metabolism. The loss of that protection contributes to the sharp rise in cardiovascular disease risk women experience after menopause.

Sleep and mental health: Chronic sleep disruption from night sweats and insomnia affects immune function, cognitive health, metabolic regulation, and long-term dementia risk.

Quality of life: Vaginal atrophy, painful intercourse, urinary symptoms, and persistent fatigue can erode relationships, self-confidence, and daily functioning in ways that compound over time.

At Three Rivers Concierge Medicine, Dr. Shoemaker helps patients weigh the risks of treatment against the risks of not treating — because doing nothing is also a choice with consequences.

How much does HRT cost?

The cost of hormone replacement therapy depends on the type of hormones prescribed, the delivery method, and whether your insurance covers them. FDA-approved hormone therapies — estradiol patches, oral estradiol, micronized progesterone — are generally covered by most insurance plans with a standard copay, often making them surprisingly affordable at $20–$60 per month.

Compounded "bioidentical" hormone formulations from specialty pharmacies are typically not covered by insurance and can run $100–$300+ per month depending on the formulation and pharmacy.

At Three Rivers Concierge Medicine, hormone therapy is managed as part of your concierge membership, which provides the extended visits, direct physician access, and ongoing monitoring that make HRT safer and more effective. Dr. Shoemaker typically prescribes FDA-approved options when appropriate, which keeps medication costs reasonable and insurance-eligible. The membership itself covers the level of physician oversight that insurance-based practices — with their 10-minute appointments and months-long wait times — simply can't provide.

Is hormone therapy covered by insurance?

Most FDA-approved hormone therapy medications are covered by insurance, including commonly prescribed options like estradiol patches, oral estradiol, and micronized progesterone. Coverage and copay amounts vary by plan, but these are well-established medications that most insurers include in their formularies.

What's typically not covered: compounded hormone formulations from specialty pharmacies, "premium" delivery methods not on your plan's formulary, and the kind of extended evaluation and monitoring time that physician-led hormone management actually requires.

At Three Rivers Concierge Medicine, your concierge membership covers the time-intensive aspects of care — the thorough initial evaluation, unhurried follow-up visits, direct phone and messaging access to Dr. Shoemaker, and the ongoing adjustments that safe HRT requires. Your insurance is then used for the medications and lab work themselves, the way it was designed to work. Dr. Shoemaker's team can help you understand your specific coverage before starting treatment.

What labs are needed before starting HRT?

A thorough pre-treatment lab panel is essential for safe hormone therapy — both to confirm that your symptoms are hormonally driven and to establish baseline values for monitoring. At Three Rivers Concierge Medicine, Dr. Shoemaker typically orders:

  • Hormone levels: Estradiol, FSH, LH, progesterone, and testosterone (yes, testosterone matters for women too)
  • Thyroid panel: TSH, free T3, and free T4 — because thyroid dysfunction mimics many perimenopausal symptoms
  • Metabolic markers: Fasting glucose, insulin, HbA1c, and a comprehensive lipid panel
  • Complete blood count and liver function to establish safe baselines
  • Vitamin D and B12 — commonly deficient and relevant to energy, mood, and bone health
  • DEXA scan for bone density, particularly if you have risk factors for osteoporosis

This panel goes beyond what many clinics order because the goal isn't just to prescribe hormones — it's to understand your complete health picture and rule out other conditions that might explain your symptoms. Many women have been told "your labs are normal" by providers who only checked one or two values. A comprehensive evaluation often reveals the full story for the first time.