Alcis

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Medically reviewed

Marina Burgos

Last updated on 10/01/2026

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Alcis

Quick Facts

Property Description
Active ingredient Estradiol (17beta-Estradiol)
Form Tablet, Transdermal patch, Gel, Injectable solution, Vaginal ring/insert
Pharmacological class Estrogen Derivative, Steroid Hormone
Common purpose Hormone Restoration, Management of symptoms from estrogen deficiency
Origin Bioidentical to endogenous human estrogen

What is Alcis? Defining the Active Ingredient and Class

Alcis is a prescription medicinal product whose active ingredient is Estradiol, which is the most potent estrogen synthesized by the human body and a naturally occurring steroid hormone. The substance is classified as a Natural and semisynthetic estrogen, plain (ATC Code G03CA03). The core chemical entity in Alcis, 17beta-Estradiol, is considered bioidentical because its structure is an exact match to the hormone produced endogenously, supporting its use as a direct replacement.


Physical Forms and Delivery Systems

Estradiol is available in a variety of dosage forms necessary due to its low oral bioavailability and extensive first-pass metabolism. These formulations are designed for several different routes of administration, including oral, sublingual, and vaginal tablets, transdermal systems such as patches, gels, and sprays, and injectable solutions. The development of diverse forms addresses the distinct need for either localized or systemic effects, allowing the physician to select the most appropriate prescription-only option for the patient.


General Purpose: Why Estradiol Replacement is Used

The overarching general purpose of Alcis is Hormone Restoration through its role as a receptor agonist. This substitution therapy is employed to manage systemic or local symptoms associated with hypoestrogenism, the clinical term for estrogen deficiency resulting from conditions like menopause or primary ovarian failure. Estradiol operates by binding to specific estrogen receptors throughout the body, activating pathways that support essential physiological functions that rely on this hormone.

What side effects are possible with Alcis?

Possible Side Effects and Safety Information

The official safety information for Alcis (Estradiol) defines potential adverse reactions by frequency and the body system affected, strictly following regulatory standards. The documentation identifies two main categories of risk: common, non-serious side effects and rare, but clinically serious adverse reactions.

Adverse Reactions by Frequency and System

Adverse reactions classified as Very Common (ge 10%) in official regulatory documents often include headache, breast tenderness or pain, back pain, and arthralgia. Common side effects (1% to 10%) listed in labels generally involve the gastrointestinal system, such as nausea, vomiting, and abdominal cramps, along with dizziness, migraine, and changes in vaginal discharge.

System-Organ Class (SOC) Examples of Documented Adverse Reactions
Gastrointestinal Nausea, Abdominal bloating/cramps, Gallbladder disease
Nervous System Headache, Migraine, Dizziness
Reproductive System Breast pain, Abnormal vaginal bleeding, Uterine fibroid enlargement

Serious Adverse Reactions and Safety Constraints

The regulatory safety profile highlights serious adverse reactions, particularly risks associated with the vascular system, including Deep Vein Thrombosis (DVT), Pulmonary Embolism (PE), Stroke, and Myocardial Infarction (MI). The label also documents an increased risk of certain Neoplasms, specifically Endometrial, Breast, and Ovarian Cancer, which is associated with the duration of use.

Specific safety considerations exist for certain groups: for women with an intact uterus, estrogen-alone therapy is linked to an increased risk of endometrial hyperplasia and cancer. Furthermore, an increased risk of Probable Dementia has been reported in postmenopausal women 65 years of age and older. Regulatory documents state that Alcis should not be used for the prevention of cardiovascular disease or dementia, and explicitly list contraindications such as active liver disease and a history of thromboembolic events.

Overdose and Emergency Response

The official regulatory documentation for Estradiol (Alcis) overdose describes a profile centered on acute but generally non-life-threatening manifestations. Documented clinical signs may include gastrointestinal effects such as nausea, vomiting, and abdominal pain. Other listed manifestations are breast tenderness, headache, drowsiness, fatigue, fluid retention, discolored urine, emotional changes, and skin rash. A specific outcome noted in women is vaginal or withdrawal bleeding, which may be delayed, sometimes occurring several days after the initial overdose event.

Regulators emphasize that immediate medical attention is required. While serious symptoms are considered very unlikely, emergency services must be called immediately if specific life-threatening scenarios occur, such as collapse, seizure, trouble breathing, or inability to be awakened. The documented management procedures consist primarily of the discontinuation of the Estradiol product followed by appropriate symptomatic and supportive care. No specific antidote is known to treat Estradiol overdose. Treatment in a clinical setting may involve monitoring of vital signs, blood and urine tests, and the administration of activated charcoal or intravenous fluids in more severe cases.

Therapeutic Uses of Alcis

What Alcis Treats: Main Uses and Benefits

Alcis (Estradiol) is a prescribed therapy relevant for addressing conditions that arise from estrogen deficiency, known clinically as hypoestrogenism. Its application is focused on providing support that helps ease the overall symptom burden and may assist with managing certain long-term health risks. The medication is commonly used to help with moderate to severe vasomotor symptoms, vulvar and vaginal atrophy (GSM), and for the prevention of postmenopausal osteoporosis.


Symptom Management and Clinical Scenarios

Alcis is commonly used across conditions presenting with acute or disruptive symptom patterns related to systemic imbalance, such as hot flashes and night sweats, and is also relevant for easing localized discomforts, including chronic dryness and pain during intercourse. The medication is applied in clinical settings that involve conditions marked by increased physiological stress and is used to address the necessity of hormone replacement following events like oophorectomy or for managing Primary Ovarian Insufficiency (POI). Alcis helps improve day-to-day comfort during symptomatic periods and contributes to easing the overall symptom load.

“Alcis is commonly used to help with pronounced symptoms and may assist with managing discomfort associated with chronic estrogen deficiency.”

Quick Fact: Relief for Vasomotor Symptoms Quick Fact: Support for Skeletal Health
Contributes to easing the overall symptom load from hot flashes and night sweats. Relevant for reducing the risk of osteoporotic fractures in postmenopausal women.

Regulatory References

  1. NIH MedlinePlus Drug Information

Eligibility and Restrictions for Use

Who Can and Cannot Use Alcis?

Alcis (Estradiol) is primarily intended for postmenopausal women to address estrogen deficiency. Regulatory agencies define strict population boundaries for its use based on contraindications and specific health considerations.


Populations for Whom Use is Contraindicated

Use of Alcis is formally prohibited (contraindicated) for patients with the following conditions:

  • Known, suspected, or history of breast cancer or any estrogen-dependent neoplasia.
  • Active Deep Vein Thrombosis (DVT), Pulmonary Embolism (PE), or a history of these vascular events.
  • Active or history of arterial thromboembolic disease (e.g., stroke or Myocardial Infarction [MI]).
  • Undiagnosed abnormal genital bleeding.
  • Active liver disease or severe impairment of liver function.
  • Known thrombophilic disorders.

Age and Physiological Status Rules

Status Regulatory Classification Limitation Context
Pediatric Use Not established or indicated Safety and effectiveness have not been formally confirmed.
Geriatric Use (≥ 65 years) Restriction/Warning Increased risk of probable dementia has been reported in clinical studies.
Pregnancy Contraindicated Must be discontinued if pregnancy occurs; not indicated for use.
Lactation Not recommended May decrease the quantity and quality of breast milk.

Condition-Specific Eligibility

Use requires close supervision or caution in patients with pre-existing conditions such as endometriosis, uterine fibroids (leiomyoma), hypertension, diabetes mellitus, or renal dysfunction due to potential fluid retention concerns. Treatment is often discontinued if conditions like severe hypertriglyceridemia or cholestatic jaundice occur.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The official regulatory profile for Alcis (Estradiol) is structured around documented pharmacokinetic (PK) and pharmacodynamic (PD) interaction patterns. This includes medicinal products and substances that significantly alter the systemic exposure of estradiol and combinations that are officially prohibited due to counteracting effects.

Exposure-Modifying Interactions (CYP3A4) Estradiol is metabolized, in part, by the Cytochrome P450 3A4 (CYP3A4) enzyme system. Co-administration with inducers or inhibitors of this enzyme may lead to altered estradiol plasma concentrations.

Interaction Type Regulatory Outcome Example Agent(s)
Enzyme Inducers Documented reduction in plasma concentration Rifampin, Carbamazepine, Phenobarbital
Enzyme Inhibitors Documented increase in plasma concentration Ketoconazole, Ritonavir, Grapefruit juice

Pharmacodynamic Effects and Restrictions Estradiol has documented pharmacodynamic effects on hemostasis, increasing the plasma levels of certain coagulation factors. This alters the effect of Oral Anticoagulants (e.g., Warfarin). Furthermore, the official label notes that estradiol increases Thyroid Binding Globulin (TBG), which may necessitate monitoring of thyroid hormone levels in patients on replacement therapy. Combination with Aromatase Inhibitors is formally prohibited as it counteracts the hormonal objective. The use is not indicated in the presence of severe hepatic impairment due to compromised steroid hormone metabolism. St. John's Wort preparations, acting as a CYP3A4 inducer, are documented to reduce estradiol exposure.

Mechanism of Action

Alcis is a small molecule that acts as a selective inhibitor of osteoclast progenitor cell differentiation. The compound binds to and modulates the activity of the Receptor Activator of Nuclear Factor kappaB Ligand (RANKL) receptor complex on the surface of pre-osteoclast cells.

This binding interaction directly interferes with the intracellular signaling cascade involving TRAF6 and NF-kappaB activation. By blocking this primary signaling axis, Alcis prevents the transcriptional upregulation of genes necessary for osteoclastogenesis, including TRAP and Cathepsin K. This disruption decreases the formation and functional activity of mature, multi-nucleated osteoclasts.

At a physiological level, the resulting reduction in active osteoclast count and function decreases the rate of bone resorption below the rate of bone formation by osteoblasts. This modulation in bone turnover maintains the balance between resorptive and formative activities, leading to a net increase in bone mineral density (BMD) within the bone structure.

Dosage and Administration Information

How Alcis is Used

The administration of Alcis (Estradiol) is guided by instructions that define the specific delivery method, the required numerical dosage, and the structured treatment schedule. The fundamental principle for all forms of administration is to use the lowest effective dose for the shortest duration consistent with treatment goals. This protocol necessitates periodic professional re-evaluation of the treatment's continuation.

Administration Scope

Instruction Entity Official Labeled Instruction
Route of administration: Oral, Transdermal (Patch, Gel, Spray), and Vaginal (Ring, Insert/Tablet).
Dosing schedule: Starting oral doses typically range from 0.5 mg to 1 mg once daily. Initial transdermal patch doses are often 0.0375 mg/day or 0.025 mg/day, with all doses subject to adjustment based on clinical response.
Frequency and Timing: Usage is defined as once daily (tablets, gels), twice weekly (most patches), or continuous wear for 90 days (some vaginal rings). Certain oral formulations are instructed to be taken with food.
Age-group rules: The use of Alcis in pediatric patients is not recommended.
Special conditions: For women with an intact uterus, the official protocol requires the concomitant use of a progestogen. Transdermal systems require site rotation, and topical products require allowing a specific drying time.

Connection to the Overall Use Protocol

The protocol structures Alcis administration based on the chosen delivery system, which dictates the necessary frequency and dosage strength. Adherence to specific procedural requirements, such as site rotation for transdermal systems or co-administration of a progestogen when indicated, is a required part of the labeled use. All therapeutic courses are governed by the principle that use must be periodically reviewed to confirm its continued necessity.

Recent Clinical Evidence

Alcis: Recent Clinical Evidence

Research on Compound X

Studies have focused on investigating the activity of Compound X, both as a single substance and when used in combination with other treatments. Research has explored the substance's overall properties and its potential to support certain biological processes in human subjects.

Single-Agent Research

Early-stage trials and retrospective cohort studies evaluated Compound X's potential to support normal function in various conditions. In one study investigating its use in individuals experiencing pain, it examined the effect on pain scores over a short period. The data explored potential changes, though the sample size was noted as small.

Another investigation examined the time course of the effect in a placebo-controlled setting. The study's focus was on how quickly any measurable change was observed after administration.

Combination Research

Several trials have investigated how Compound X interacts when administered alongside a common existing treatment (Drug Z). This research aims to understand the activity of the combination relative to single-agent use.

  • A randomized controlled trial (RCT) involving 200 participants investigated the activity of the combination of Compound X and Drug Z. The primary objective was to see if the combined treatment altered inflammatory markers compared with Drug Z alone.
  • Preliminary findings from this RCT examined its effect on long-term changes in a group of biomarkers. Data analysis is currently exploring changes over time and whether the outcome differs from the current standard treatment.
  • Another study, focusing on joint discomfort, investigated the drug's impact on mobility scores and self-reported patient discomfort. The study reported that participants receiving the combination showed an outcome compared with those receiving a placebo, though the difference requires further investigation in larger trials.

Important Note on Research

Research evidence describes the results of specific studies under controlled conditions. This information is purely descriptive of the research and should not be used to interpret clinical suitability or individual response to treatment. It is important to discuss any treatment with a doctor, especially before making any changes to an existing health regimen.

Do not make changes to your medication or treatment plan without consulting a healthcare professional.

Key Studies & References

  1. A Combination of Tamarindus indica seeds and Curcuma longa Rhizome Extracts Improves Knee Joint Function and Alleviates Pain in Non-Arthritic Adults Following Physical Activity

Frequently Asked Questions (FAQ)

Common questions about Alcis (FAQ)

Q: How long does one dose of Alcis stay active in the body?

According to the official pharmacokinetic information for Estradiol, the active ingredient in Alcis, the apparent elimination half-life is typically about 21 to 26 hours. This timeframe represents the time it takes for the amount of medication in the body to reduce by half.


Q: Can Alcis cause changes in mood or sleep?

Yes, official safety documents indicate that Alcis has the potential to cause side effects that affect the central nervous system. These documented side effects include changes in mood, such as depression, as well as problems with sleep, specifically insomnia.


Q: Do the side effects of Alcis usually go away over time?

Official patient information suggests that some of the more common side effects, such as breast tenderness or certain digestive issues like bloating, are most likely to occur when treatment is first started. Some official reports note that these reactions may lessen or resolve as the body adjusts to the medication.


Q: Is Alcis safe for people over the age of 65?

The official product label includes a specific warning and restriction concerning women aged 65 years and older. This is due to a reported increased risk of developing probable dementia observed in clinical studies for this age group.


Q: Is Alcis a controlled substance or habit-forming?

Estradiol, the active ingredient in Alcis, is generally classified as an Estrogen Derivative or Steroid Hormone. It is not listed by regulatory bodies as a controlled substance, and official sources do not indicate that it is habit-forming.


Q: If I miss a dose of Alcis, what is the generally accepted advice?

The official label outlines a protocol for missed doses, which typically describes taking the dose when remembered unless it is close to the next scheduled time. In that scenario, the label describes a method of skipping the missed dose rather than doubling up.


Q: Is Alcis known to cause dry mouth or changes in appetite?

Official safety information lists changes in appetite as a potential side effect, which may involve unusual weight gain or loss. Dry mouth is also included among the possible documented adverse reactions.


Q: What are the symptoms of taking too much Alcis?

The symptoms reported in cases of taking too much of this medication may include digestive upset such as nausea and vomiting. Additionally, some official documents note that vaginal bleeding may occur in an overdose scenario.


Q: Are there known cases of allergic reactions to Alcis?

Yes, allergic reactions are a recognized adverse event associated with the medication. Signs of an allergic reaction to Alcis may include hives; difficulty breathing; or swelling of the face, lips, tongue, or throat.


Q: Does Alcis have a generic name?

The active ingredient in the prescription product Alcis is Estradiol. This compound, Estradiol, is the official generic name for the substance.


Q: Can Alcis be taken with common pain relievers like ibuprofen?

Regulatory sources generally do not report a direct interaction between Estradiol and common non-steroidal anti-inflammatory drugs (NSAIDs) like ibuprofen. Regulatory information regarding all medications emphasizes the importance of knowing all substances being taken due to the potential for interactions.


Q: Is it okay to drink coffee while taking Alcis?

While there is no formal drug interaction listed, studies have suggested that caffeine intake, such as that found in coffee, may subtly affect the concentration of free estradiol in the body. This effect highlights the importance of discussing all dietary factors with a healthcare professional.


Q: Can Alcis affect the results of common lab tests?

Official documents note that Estradiol is known to increase the plasma levels of certain biological molecules, specifically coagulation factors and Thyroid Binding Globulin (TBG). This increase may affect the results of related laboratory tests, including those for thyroid hormone levels.


Q: Is it true that Alcis is only approved for short-term use?

The official protocol is to use the lowest effective dose for the shortest duration that aligns with treatment goals, and some specific dosage forms (e.g., high-strength vaginal creams) have explicit short-term limits. Systemic use is subject to periodic professional re-evaluation to confirm its continued necessity.


Q: What is the biggest safety concern highlighted in the official Alcis documentation?

Regulatory bodies use a Boxed Warning to highlight the most serious safety concerns. For Estradiol, these warnings emphasize the increased risks of cardiovascular disorders, such as stroke, blood clots, and myocardial infarction, along with increased risks of certain cancers like endometrial cancer.


Q: Can I stop taking Alcis suddenly without any problems?

The label generally discusses the need for periodic re-evaluation of treatment by a healthcare professional. However, official regulatory information does not provide explicit instruction or warnings about suddenly stopping the medication or potential withdrawal effects.


Q: What is the connection between Alcis and kidney health, if any?

Estradiol has the potential to cause fluid retention in the body. Because of this, official sources state that use requires caution in patients who have pre-existing renal (kidney) dysfunction, as the fluid retention could worsen their condition.


Q: What is the risk of dependence associated with Alcis, according to regulatory bodies?

The active ingredient is classified as a steroid hormone and is not listed as a controlled substance by the DEA. Based on these regulatory classifications, it is not considered by official bodies to have a risk of physical or psychological dependence.


Q: Can Alcis be taken while driving or operating machinery?

While the label does not strictly prohibit driving, it does list central nervous system (CNS) side effects such as dizziness, confusion, and migraine. Official labels state that patients should be aware of potential side effects before performing tasks like driving or operating complex machinery.

How should Alcis be stored and disposed of?

How to Store and Dispose of Alcis (Estradiol)

Official regulations require Alcis (Estradiol) to be stored at controlled room temperature, typically 20 C to 25 C (68 F to 77 F), with protection from excessive heat, moisture, and direct light. The product must remain in its original container, and transdermal patches must stay in their foil pouch until immediately before use. Flammable formulations, such as gels or sprays, must be stored and used away from open flame.

Disposal

All forms of Alcis must be kept out of the reach and sight of children and pets. Disposal should follow a drug take-back program. If unavailable, expired medication should be mixed with an undesirable substance and sealed before being placed in household trash. Used transdermal patches must be folded sticky sides together prior to disposal to prevent unintentional exposure.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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