Dicynone

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Dicynone

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Method of action: Angioprotective, Hemostatic

Treatment option:

Medically reviewed

Rosario Oropesa

Last updated on 22/12/2025

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 Dicynone

Quick Facts Description
Active Ingredient Etamsylate
Form Tablets and Solution for Injection
Pharmacological Class Systemic Hemostatic, Angioprotector
General Purpose Aids in bleeding control via microvessel stabilization
Origin Synthetic Compound

What Type of Medicine is Dicynone (Etamsylate)?

Dicynone is the proprietary name for the medicine containing the single active ingredient, Etamsylate. This compound is formally classified as a Systemic Hemostatic and Angioprotector, belonging to the larger group of antihemorrhagic agents (ATC code B02BX01). Etamsylate is a non-hormonal, synthetic compound, manufactured to provide a systemic therapeutic action across the body's microcirculation.

The mechanism of Etamsylate involves targeting the initial phase of hemostasis by supporting the structure of the vascular wall. This is a key differentiating factor from agents that primarily affect systemic clotting cascades, establishing Dicynone's specific focus on microvascular integrity.

Composition and Available Forms of Dicynone

The medicine's efficacy is attributable to Etamsylate, the sole active substance. To facilitate its systemic delivery, Dicynone is prepared in two principal pharmaceutical preparations: oral tablets and a sterile aqueous solution for injection. The availability of both oral and parenteral forms (intravenous or intramuscular administration) ensures flexibility, which is typical for systemic hemostatics.

The General Purpose of This Capillary Stabilizer

The fundamental purpose of Dicynone is to support the body’s mechanisms for controlling blood loss by reinforcing the fragility of small vessels. It functions primarily as a capillary stabilizer, improving the functional resistance of the tiny capillary walls and reducing their permeability, thereby minimizing leakage. Etamsylate’s role is associated with promoting the adhesion of platelets to damaged vessel sites, optimizing the vascular phase of hemostasis.

What side effects are possible with Dicynone?

Possible Side Effects and Safety Information

The regulatory documentation for Etamsylate (Dicynone) classifies possible adverse reactions according to the frequency with which they have been reported in clinical use, consistent with official regulatory standards.

Adverse reactions classified as common in official documents are primarily related to the gastrointestinal and nervous systems. These frequently reported effects include headache, stomach upset, diarrhoea, nausea, skin rashes, and fatigue. Joint pain has been documented as a rare effect.

Serious and Rare Safety Concerns

The most clinically significant safety concerns are classified as very rare. These documented severe adverse reactions involve the blood and lymphatic system and include a severe reduction in the number of white blood cells (leukopenia), a reduction in blood platelets (thrombocytopenia), and coagulation disorders involving the formation of clots in the blood vessels (thromboembolism).

Population and Administration Safety Notes

The official label mandates specific constraints for use. Etamsylate is formally contraindicated in individuals with the rare blood disorder acute porphyria. For patients with existing kidney or liver function disorders, the decision for use requires physician assessment. The 500 mg capsule formulation is documented as unsuitable for treating children.

Administration-specific notes include the risk of transient hypotension (decreased blood pressure) after injection. The injection solution contains the excipient sodium bisulfite, which is noted in regulatory text for its potential to trigger allergic reactions in susceptible patients.

Overdose and Emergency Response

Overdose and When to Seek Help

The regulatory profile for Etamsylate (Dicynone) overdose is primarily focused on required emergency actions and supportive care, as there is generally no documented experience of overdosage described in official regulatory texts.


Official Regulatory Findings on Overdose

The table below summarizes the core requirements and facts documented in authoritative government regulatory sources, such as the Summary of Product Characteristics (SmPC):

Category Regulatory Statement
Antidote Availability No specific antidote is known for Etamsylate overdosage.
Clinical Manifestations No specific symptoms or signs of overdose are consistently described in regulatory documents.
Supportive Treatment Management consists of symptomatic and supportive treatment, including measures to eliminate the medicinal product from the body.

When to Seek Urgent Medical Help

Any instance of suspected overdosage with Dicynone requires immediate medical attention. Regulatory guidance mandates that individuals seek immediate medical attention or contact a doctor or healthcare professional immediately if they suspect too much of the medicine has been taken. This required action ensures appropriate supportive care and observation are initiated without delay.

Therapeutic Uses of Dicynone

What Dicynone Treats: Main Uses and Benefits

Dicynone (Etamsylate) is considered relevant for symptom management across therapeutic areas involving microvascular bleeding. The primary therapeutic benefit of Dicynone is the control and reduction of blood loss from fragile small vessels, which is observed in various clinical settings. This medication is generally applied across domains where additional symptomatic support is needed to manage blood loss.

It is commonly used to help with symptoms that interfere with daily functioning due to abnormally heavy or prolonged menstrual bleeding (menorrhagia) and other forms of dysfunctional uterine bleeding. Additionally, it is applied in addressing recurrent nosebleeds (epistaxis), bleeding associated with small vessels, and to help manage post-procedural blood loss following surgeries. In specialized scenarios, it is used to support risk management for intraventricular hemorrhage in premature infants. This use supports patients during episodes of heightened discomfort and contributes to easing the overall symptom load when symptoms are more noticeable.

“The supportive role of Dicynone is centered on helping to ease the overall symptom burden caused by bleeding associated with small vessels.”


Quick Fact: Relief for Capillary Bleeding

Regulatory References

  1. NIH review of Etamsylate's therapeutic efficacy

Eligibility and Restrictions for Use

The eligibility profile for Dicynone (Etamsylate) is strictly defined by regulatory documents, identifying specific populations who are permitted, restricted, or prohibited from using the medicine.

Contraindicated Populations (Must Not Use)

Dicynone is absolutely contraindicated in patients diagnosed with Acute Porphyria and in individuals with Bronchial Asthma or a known Hypersensitivity to the active substance or its excipients, such as sulphites.

Age and Life Stage Eligibility

  • Adults and Adolescents: Use is generally permitted as per labeled conditions.
  • Neonates: The injectable form is specifically established and indicated for use in premature babies for hemorrhage prevention. Oral forms are typically unsuitable for general pediatric use.
  • Pregnancy: Use is prohibited during the first trimester. It is restricted to conditional use during the second and third trimesters, permitted only when the expected therapeutic benefit is determined to be superior to the potential fetal risk.
  • Lactation: Use is not recommended while breastfeeding.

Condition-Based Restrictions

Caution is required for patients with Renal and/or Hepatic Function Disorders, as official labeling notes that it is not known if the drug's properties are modified in these conditions. Furthermore, careful monitoring is advised for patients with blood pressure instability when the medicine is administered by injection.

What should I know about interactions with other medicines?

Dicynone Interactions with other medicines and products

The official regulatory profile for Dicynone (Etamsylate) defines its interaction patterns primarily through physicochemical stability constraints and specific pharmacodynamic effects, rather than common metabolic pathways. No interactions mediated by CYP enzymes or drug transporters are documented in the official labeling.

Interactions with Medicinal Products

Co-administration of Etamsylate and the anticoagulant Heparin results in a pharmacodynamic antagonism that may counteract Heparin's pro-hemorrhagic and anti-coagulant effects. For the injection formulation, the sulphite excipient can cause the inactivation of Thiamine (Vitamin B1).

Restrictions on Administration

The Dicynone Solution for Injection is formally incompatible with Sodium Bicarbonate Solution and Compound Sodium Lactate Solution, and these combinations must not be prepared. A mandatory timing rule applies when administering Dextran infusions, requiring the Dicynone injection to be administered prior to the start of the infusion. If the injection is mixed with a physiological saline solution, its use is restricted to immediate administration due to stability considerations.

Interaction with Laboratory Tests

Etamsylate can cause in-vitro interference with specific diagnostic procedures. This interference is documented with the enzymatic creatinine assay, which may lead to analytical bias in test results.

Mechanism of Action

Dicynone, also known as etamsylate, exerts its action primarily by modulating hemostasis mechanisms at the level of the microvasculature, with selective accumulation in tissues such as the vessel wall. The molecular target involves elements associated with the platelet-endothelium interface. The compound functions as a stabilizing agent on the vessel wall. Intracellularly, it is known to influence prostaglandin synthesis by inhibiting the enzymatic activity of certain cyclooxygenase isoenzymes and lipoxygenase, shifting the local balance of vasoactive mediators. Specifically, it reduces the synthesis of prostaglandins that promote capillary permeability and vasodilation. Downstream consequences include an increase in platelet adhesiveness and the promotion of P-selectin-dependent platelet aggregation mechanisms, facilitating the formation of the primary platelet plug. At the system level, this translates to a generalized restoration of capillary resistance and a reduction of filtration through the microvascular barrier, thereby modulating microcirculatory integrity.

Dosage and Administration Information

Dicynone (Etamsylate) is administered via three pathways: oral (tablets or capsules), parenteral (intravenous or intramuscular injection), and local/topical application. The choice of administration route depends on the required systemic versus localized effect.

For adult oral use, the standard daily dosage typically ranges from 750 mg to 1500 mg, which is taken in divided doses across the day, often two to four times daily. The injectable solution is used for acute situations, with a single dose administered at 250 mg to 500 mg.

The duration of use follows distinct, specific schedules rather than continuous administration. For example, in cyclic use, oral treatment is prescribed for a 10-day course, beginning 5 days before the expected onset of menstruation. For pre-surgical prophylaxis, the course is administered for the 2 to 3 days immediately preceding the operation.

Administration is also subject to procedural conditions. Oral forms are generally taken with meals and water. Furthermore, if a Dextran infusion is required, the Dicynone must be injected first. For laboratory monitoring, blood sampling for certain tests must occur before the first daily dose to prevent potential analytical interference. Pediatric and neonatal populations require specific dose adjustment, with the neonatal regimen set at 10 mg per kilogram of body weight.

Recent Clinical Evidence

Research evidence / Overview of Studies for Dicynone (Etamsylate)


Evidence for use in Heavy Menstrual Bleeding

Research has explored whether Etamsylate can be applied in studies examining conditions characterized by fluctuating or episodic manifestations, such as heavy menstrual bleeding (menorrhagia). Studies conducted during periods of increased symptom activity include short-term randomized controlled trials (RCTs) and systematic reviews. The primary focus was on measuring the objective quantification of menstrual blood loss and evaluating patient-reported outcomes describing perceived discomfort.

The research so far indicates that the certainty remains low for Etamsylate in this specific use. The sample sizes were modest in many of the direct comparative trials, which means that the results apply only to the populations studied. Additionally, comparative evidence is lacking in some study areas, and long-term effects are not fully established; therefore, evidence for sustained response remains insufficient.


Evidence for use in Surgical and Post-Procedural Bleeding

Etamsylate was evaluated in studies exploring outcomes related to systemic or functional imbalance due to blood loss in surgical settings. These trials, often short-term RCTs, monitored outcomes related to acute or disruptive episodes, specifically evaluating the quantification of blood loss and the need for blood transfusion.

The isolated effect of Etamsylate remains partially uncertain because much of the research evaluated it within a multi-drug regimen. Furthermore, most existing research examined the medicine in a prophylactic (preventative) research scenario rather than in the context of treating active, severe bleeding, meaning research exploring treatment of active hemorrhage is still emerging.


What is Still Uncertain About the Research for Etamsylate

This research overview highlights what is known and what is still uncertain about the clinical evidence. The overall evidence quality varies across studies, particularly in comparative trials for menorrhagia, where the findings were mixed against comparators.

Key limitations across the research base include:

  • The widespread use of Etamsylate as part of a combination therapy, which limits the ability to draw conclusions about its single therapeutic role.
  • Long-term effects are not fully established, and follow-up durations were limited across most indications studied.

Key Studies & References

  1. Etamsylate: a review of its use in surgery and in the management of capillary haemorrhage.

Frequently Asked Questions (FAQ)

Common questions about Dicynone (FAQ)

Q: How quickly is Dicynone supposed to stop bleeding?

A: According to official product information, when administered intravenously (by injection), the medicine reaches its highest concentration in the bloodstream quickly. For use in acute situations, the injection may be given prior to the operation. The oral form is absorbed more slowly, achieving its maximum concentration in the body after several hours.

Q: Why is Dicynone used for heavy periods?

A: Dicynone is officially indicated for the prevention and treatment of capillary bleeding. This includes use for women who experience excessively heavy or long periods (menorrhagia), whether the cause is linked to an intrauterine device or other factors. This use is supported by the medicine's role as a capillary stabilizer.

Q: Does Dicynone interact with common painkillers like Ibuprofen?

A: Official labeling does not specify known interactions with common non-steroidal anti-inflammatory drugs (NSAIDs) such as Ibuprofen. However, interactions are documented with certain other medicines that affect the blood, such as some antifibrinolytic medicines or anticoagulants.

Q: Can Dicynone affect blood pressure?

A: Yes, official regulatory documents state that a transient, temporary drop in blood pressure (hypotension) can occur after the injection form of Dicynone is administered. This is why careful monitoring is noted as necessary for patients who have blood pressure instability when the medicine is administered by injection.

Q: Does Dicynone help with internal bleeding?

A: The medicine is indicated for the prevention and treatment of capillary bleeding. Specific uses listed in official labeling include addressing gastrointestinal bleeding and hemorrhagic urinary disorders, which involve bleeding in internal body systems.

Q: How long does Dicynone stay in your system?

A: Following intravenous administration, the medicine has an elimination half-life of approximately two hours. After oral administration, small quantities of the substance can still be found in the urine for up to 48 hours.

Q: Can Dicynone make you feel dizzy or lightheaded?

A: Official regulatory documents classify common side effects, which include headache and fatigue. Dizziness or lightheadedness are not typically listed among the common adverse effects reported in official documents.

Q: Is Dicynone safe for long-term use?

A: Official regulatory information does not set a maximum period for continuous use of Dicynone. However, if long-term treatment is necessary, the official label advises that monitoring for possible color vision disturbances and regular eye examinations may be necessary.

Q: Are there any food restrictions when taking Dicynone?

A: No specific dietary restrictions are mentioned in the official regulatory documents, which generally advise taking the oral forms with meals and water.

Q: How effective is Dicynone for gum bleeding?

A: Dicynone is indicated for the prevention and treatment of capillary bleeding before, during, and after surgical procedures. This includes oral and dental surgery, where it is used to control bleeding in tissues such as the gums during a procedure.

Q: Does Dicynone make you tired?

A: Yes, official regulatory documents list fatigue, which is a feeling of weakness or being very tired, as a common side effect of Dicynone.

Q: What is the maximum amount of time someone can take Dicynone?

A: The treatment duration is determined by a healthcare professional based on the specific condition. For long-term use, regulatory documents state that monitoring for possible color vision disturbances and regular eye examinations may be required.

Q: Can Dicynone affect blood cell/platelet counts?

A: Yes, very rare, serious side effects have been documented that involve changes in blood components. These include a severe reduction in white blood cells (leukopenia) and a reduction in blood platelets (thrombocytopenia), which can affect the body's ability to fight infection or clot blood.

Q: Can men also take Dicynone for certain conditions?

A: Yes, Dicynone is indicated for the prevention and treatment of capillary bleeding in both adults and children over one year of age. This includes use for non-gender-specific conditions such as gastrointestinal bleeding or bleeding in the urinary tract, for example, after prostate surgery.

Q: Can I take other medications with Dicynone for pain relief?

A: While common pain relievers are not listed as formal contraindications, it is important to discuss all medications being taken with a healthcare professional, especially those that affect blood clotting, as interactions are documented for these classes.

Q: What should I do if I experience severe headache after taking Dicynone?

A: Headache is listed as a common side effect in the official product information. The guidance for common side effects is to inform a healthcare professional if they persist, become severe, or if a side effect is experienced that is not mentioned in the official product information.

How should Dicynone be stored and disposed of?

How to Store and Dispose of Dicynone (Etamsylate)

The official storage conditions for Dicynone are established to maintain its stability and integrity. The medication, in both oral and injectable forms, must be stored at a temperature below 30 C. It is a mandatory requirement that Dicynone must not be refrigerated or frozen.

Storage Requirements

  • Protection: Dicynone ampoules must be protected from light and stored in the original package. Oral forms require storage in a dry place.
  • Safety: All formulations must be kept strictly out of the sight and reach of children.
  • Stability: The medicine must not be used after the expiration date (EXP), and any injection solution ampoule showing discoloration must be discarded.

Disposal

To prevent environmental contamination, unused or expired Dicynone must not be thrown into household rubbish or wastewater. Disposal must be carried out according to local regulations, often by returning it to a pharmacist for proper handling.

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

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