Intrax

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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 Intrax

What is Intrax? Definition and Overview

Property Description
Active ingredient Tranexamic acid
Form Tablet, capsule, solution for injection
Pharmacological class Antifibrinolytic agent
General purpose Prevention and management of excessive bleeding
Origin Synthetic amino acid derivative

What is Intrax? Definition and Pharmacological Class

Intrax is a prescription medicine containing the active ingredient, Tranexamic acid, a compound chemically defined as a synthetic amino acid derivative. It is fundamentally classified as a potent antifibrinolytic agent, meaning it acts to stabilize the body's natural blood clots and prevent their premature dissolution. This mechanism places the drug within the antihemorrhagic therapy group, which focuses on controlling bleeding episodes. For the patient, the medication is designed to preserve the essential structural integrity of blood clots once they have formed.


The Purpose and Origin of Intrax

The primary general purpose of Intrax is to help manage or prevent significant blood loss by maintaining clot stability. Tranexamic acid achieves this core benefit through its unique chemical structure: it functions as a lysine analog, enabling it to specifically target and reversibly block the sites on the plasminogen molecule responsible for initiating the clot-dissolving process. Its synthetic origin ensures a high degree of purity and a predictable therapeutic action. The use of Tranexamic acid serves as a strategy for stabilizing hemostasis and supporting the body's natural defenses against excessive bleeding in scenarios involving increased risk of hemorrhage.


Forms of Intrax: Composition and Preparation

As a single-component product, Intrax is supplied solely as Tranexamic acid alongside necessary pharmaceutical excipients or an aqueous vehicle. The medication is prepared in several fundamental forms: solid preparations like the tablet and capsule for oral consumption, and as a sterile solution for intravenous injection presented in an ampoule for acute systemic delivery. The availability of both oral and intravenous routes of administration offers a point of clinical differentiation from some other hemostatic agents. This flexibility allows the agent to be administered either for sustained systemic effect or for immediate action when rapid clot stabilization is required.

Regulatory References

  1. MedlinePlus Drug Information: Tranexamic Acid

What side effects are possible with Intrax?

Possible Side Effects and Safety Information

The official safety profile for Intrax (tranexamic acid) is structured by regulatory authorities to delineate possible adverse reactions by frequency and affected organ system. The most Common effects, documented in regulatory sources, are generally disturbances of the Gastrointestinal system, which include nausea, vomiting, diarrhea, and abdominal discomfort.


Adverse reactions classified as Uncommon involve allergic skin reactions, such as allergic dermatitis. The most clinically significant effects are formally categorized as Rare, which primarily relate to Vascular disorders like arterial or venous thrombosis (blood clot formation, including deep vein thrombosis and pulmonary embolism) and Eye disorders, specifically visual disturbances and color vision impairment.


Serious adverse reactions listed in official documents include convulsions (seizures) and severe hypersensitivity reactions (anaphylaxis). Due to the medicine's mechanism, it is strictly Contraindicated in individuals with active thromboembolic disease or a known history of thrombosis. Furthermore, use is limited in patients with severe renal impairment due to the risk of drug accumulation.


Population-Specific Safety Notes

  • Renal Impairment: Requires cautious use because the medicine is primarily excreted by the kidneys.
  • Pediatric Use: The oral formulation for heavy menstrual bleeding is contraindicated in pediatric patients.
  • Visual Changes: Any detection of changes in color vision or other visual disturbances requires immediate cessation of the medication, as stated in regulatory labeling.

Overdose and Emergency Response

Overdose and When to Seek Help

The official regulatory labeling for Intrax (Tranexamic acid) documents specific manifestations and risks associated with overdose. Common documented clinical signs involve the gastrointestinal system, presenting as nausea, vomiting, and diarrhea. Other presentations may include headache, dizziness, hypotension (low blood pressure), and visual disturbances, such as impaired color vision.

Overdose is defined by regulators as potentially leading to severe systemic outcomes. These serious manifestations include the risk of convulsions or seizures and thromboembolic events, such as deep vein thrombosis, pulmonary embolism, or cerebral thrombosis. The risk of toxicity is heightened in patients with renal impairment due to the potential for drug accumulation. Furthermore, severe and even fatal outcomes have been reported when the medication is administered via unauthorized routes, such as intrathecal injection.

Regulators mandate specific emergency actions. Patients should seek immediate medical attention for any suspected overdose. Urgent medical help is required if a patient experiences a seizure, difficulty breathing, sudden chest pain, or exhibits signs suggestive of a blood clot. Management of an overdose is primarily supportive and symptomatic, including measures to promote drug excretion by maintaining a high fluid intake.

Therapeutic Uses of Intrax

Quick Facts About Intrax

  • May address: Heavy menstrual bleeding (cyclic menorrhagia) in women of reproductive potential.
  • May also support: The reduction or prevention of excessive bleeding in patients with hemophilia during and following dental procedures.

Intrax is a prescription medication utilized to help manage and address conditions associated with excessive blood loss. Its primary indication is the temporary treatment of cyclic heavy menstrual bleeding (menorrhagia) in females of reproductive age, supporting a reduction in blood flow during monthly menstruation. Clinical use suggests it is an option for those seeking a non-hormonal, non-surgical treatment approach to manage this concern.

Additionally, Intrax is indicated for short-term use in patients with hemophilia to reduce or prevent the risk of hemorrhage and to potentially lessen the need for factor replacement therapy during and after a tooth extraction procedure. The use of this agent is focused on these specific therapeutic applications. Consultation with a healthcare provider is essential to determine if this medication is appropriate for an individual's specific health needs.

Regulatory References

  1. FDA prescribing information

Eligibility and Restrictions for Use

This information is based on the official regulatory profile of the active substance in Intrax, tranexamic acid, as defined by government health authorities.

Contraindications and Eligibility Restrictions

Classification Rule and Rationale
Populations for Whom Use is Contraindicated Active thromboembolic disease (e.g., deep vein thrombosis, pulmonary embolism) or an intrinsic high risk of thrombosis. Known hypersensitivity to the active substance. Patients with subarachnoid hemorrhage (due to risk of cerebral edema). For the injection, neuraxial (intrathecal/epidural) administration is prohibited.
Age-Related Eligibility Use is allowed in adults. Use in children and adolescents requires doctor determination. The oral tablet is not indicated for postmenopausal women.
Condition-Specific Rules Severe renal impairment is a contraindication or requires substantial dose reduction due to the risk of drug accumulation. Use requires caution in patients with a history of convulsions or acquired disturbances of color vision.
Physiological State Restrictions The oral tablet is contraindicated for females of reproductive potential using combined hormonal contraception (due to increased risk of blood clots). Use during pregnancy is generally not recommended unless the benefit outweighs the risk.

Eligibility is primarily structured by excluding patients with pre-existing risks of clotting or those with severe organ dysfunction to ensure the medicine’s safe use.

What should I know about interactions with other medicines?

Intrax Interactions with other medicines and products

Intrax may alter the concentration of many other medications in the body, which can lead to increased risk of side effects or reduced effectiveness of the co-administered drug. The primary mechanism for these interactions involves Intrax acting as a potent inhibitor of the Cytochrome P450 3A4 (CYP3A4) enzyme system and the P-glycoprotein (P-gp) drug transporter.


Clinically Significant Interactions

Category Examples of Interacting Medicines Interaction Classification
Cardiovascular Methadone, Disopyramide, Quinidine, Dronedarone Contraindicated
Anticoagulants Ticagrelor, Apixaban, Rivaroxaban Contraindicated/Avoid
Statins Lovastatin, Simvastatin Contraindicated
Immunosuppressants Cyclosporine, Tacrolimus Use with Caution (Dose Adjustment)

Other Interacting Product Categories

Co-administration with potent CYP3A4 inducers (such as Rifampin, Phenytoin, or Carbamazepine) is also Contraindicated as these agents can substantially lower Intrax concentrations, reducing its therapeutic effect. Conversely, Intrax can significantly increase the concentration of drugs that are substrates for CYP3A4 or P-gp, potentially leading to toxic effects, including QT prolongation with certain agents (e.g., antiarrhythmics), which can be life-threatening. Consult a healthcare professional to review all current medications and determine the appropriate management of these interactions.

Mechanism of Action

How Intrax Works

Intrax, containing the active ingredient Tranexamic acid, exerts its action through the pro-enzyme plasminogen. Functioning as a lysine analog, the molecule engages in a competitive, reversible blockade of the specific lysine-binding sites (LBS) on plasminogen, thereby preventing the protein from docking onto the fibrin clot structure. This molecular interaction represents the initial step in suppressing the activation of the fibrinolytic cascade.

The competitive blockade of plasminogen leads to the functional suppression of the fibrinolytic pathway. By preventing the clot-bound activation of plasminogen into the active enzyme plasmin, the drug limits the crucial enzymatic step in clot degradation. The resulting physiological effect is the modulation of hemostasis, as the enzyme responsible for cleaving the fibrin meshwork is competitively inhibited.

This targeted enzymatic inhibition maintains the physical structure of an existing blood clot—the fibrin scaffold. The final physiological consequence is an antifibrinolytic effect, which results in the preservation of the mechanical resilience and structural integrity of the hemostatic plug.

Dosage and Administration Information

How to Use Intrax: Administration Guidelines

Intrax (tranexamic acid) is used according to distinct administration principles that depend on the clinical context. The medication is available for both oral consumption (as tablets/capsules) and for administration via the intravenous (IV) route (as a solution for injection).


Dosing and Schedule

Feature Detail
Oral Dose (Menorrhagia) 1,300 mg (two 650 mg tablets) taken three times daily.
IV Dose (Hemophilia) 10 mg/kg actual body weight, typically administered three to four times daily for short-term maintenance.
Timing & Duration Oral tablets can be taken with or without food and are restricted to a maximum of 5 days per menstrual cycle.

Administration Requirements

Specific procedural protocols exist for proper administration. The IV solution must be administered very slowly at a controlled rate (e.g., no faster than 1 mL/minute or 10 mL/minute depending on concentration). The medication must not be administered by the intramuscular (IM) route, and the injection solution must not be mixed with blood or solutions containing penicillin. Patients taking the oral tablets are instructed to swallow them whole.

Population-Specific Use

Dose reduction is mandatory for both oral and intravenous regimens when a patient has renal impairment, with adjustments based on measured serum creatinine levels. For older adults, no routine dose reduction is necessary unless there is evidence of concurrent kidney dysfunction.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Intrax (Tranexamic Acid)

Overview of the Research Evidence Base

Intrax was studied for and was evaluated in specific clinical contexts, using research methods described by regulators. The research that informs the approved uses is drawn from Randomized Controlled Trials (RCTs). These are studies where participants are randomly assigned to receive either the medicine or a placebo (an inactive substance) to examine outcomes related to systemic or functional imbalance. The findings from these individual trials have been compiled and reviewed through systematic reviews and meta-analyses to contribute to the broader evidence landscape.


Evidence for Use in Cyclic Heavy Menstrual Bleeding

Randomized Controlled Trials was conducted to explore the use of Intrax for conditions characterized by fluctuating or episodic manifestations, specifically cyclic heavy menstrual bleeding (menorrhagia), in adult women.

What Researchers Studied: Studies monitored patient cohorts over defined time intervals, often comparing Intrax to a placebo. The research examined outcomes related to systemic or functional imbalance. Research explored how symptoms change over time by using objective methods to quantify menstrual blood loss (MBL) and also applied in studies examining patient-reported experiences, such as monitoring outcomes reflecting daily functioning or activity level (Health-Related Quality of Life).

What the Studies Reported: Trials described data show patterns related to MBL measurements where the values in the group receiving Tranexamic acid differed from those in the placebo group across observed cycles. Findings help contextualize how patients reported their experience. Research monitored outcomes reflecting daily functioning or activity level and patient-reported outcomes describing perceived discomfort. These study results reflect the specific conditions under which they were conducted.


Evidence for Short-Term Use in Hemophilia

Intrax was evaluated in the context of conditions involving periods of heightened symptoms or acute episodes, specifically its short-term use in patients with hemophilia (A or B) around dental procedures, such as tooth extractions.

What Researchers Studied: Research explored short-term symptom changes in studies conducted during periods of increased symptom activity, such as surgical events. Studies examined temporary physiological imbalance by monitoring outcomes related to acute or disruptive episodes, such as the number of post-operative bleeding events. Studies monitored data show patterns related to factor replacement requirement. The study populations were patients with hemophilia undergoing extractions.

What the Studies Reported: Research described patterns observed in the studies where the reported rate of post-operative bleeding in the cohort studied was associated with the agent's use compared to control groups. Studies monitored data show patterns related to factor replacement requirement during the study. However, these results apply only to the populations studied and do not determine whether an individual will respond similarly.


Areas of Research Uncertainty and Gaps

Research exploring long-term effects are not fully established for Intrax. The majority of the foundational studies focused on short-term follow-up durations were limited. For instance, the sample sizes were modest in some trials, particularly for the hemophilia indication. Furthermore, the main RCTs for menorrhagia generally excluded women with pre-existing conditions that may increase the risk of certain complications, meaning evidence for these higher-risk groups remains limited. These are areas where research is ongoing to contribute to the broader evidence landscape.

Key Studies & References Tranexamic Acid - StatPearls (NCBI Bookshelf)

Frequently Asked Questions (FAQ)

Common questions about Intrax (FAQ)


Q: What is the main reason doctors prescribe Intrax?

Intrax is approved by regulatory bodies for two main purposes. It is used for the treatment of cyclic heavy menstrual bleeding in women of reproductive potential. It is also approved for short-term use in patients with hemophilia to help prevent or reduce bleeding following procedures such as tooth extractions.


Q: Are there food or drink restrictions when someone is taking Intrax?

Official patient guidance indicates that you can typically eat and drink normally while taking this medicine. Regulatory product information notes how the oral tablets can be taken in relation to food. There are no specific restrictions regarding alcohol use mentioned in the product information.


Q: Can women who are pregnant or breastfeeding use Intrax?

Official information indicates that use during pregnancy is generally not recommended unless a doctor determines the potential benefits outweigh the risk. Regarding breastfeeding, official data suggests that the medicine is present in breast milk in low amounts, and use is generally determined by a healthcare provider.


Q: Does Intrax affect blood pressure or heart rate?

Very rare adverse effects have been reported that relate to the cardiovascular system, particularly following overly fast intravenous administration. These effects may include a temporary drop in blood pressure (hypotension) or general discomfort (malaise).


Q: Can Intrax cause problems with the liver or kidneys?

Regulatory documents describe that dose reduction is necessary for patients with renal (kidney) impairment, because the medicine is primarily cleared from the body by the kidneys. However, official labeling states that no change in dosage is required for patients with hepatic (liver) impairment.


Q: What is the general success rate reported in large-scale studies of Intrax?

In clinical trials for heavy menstrual bleeding, studies examined outcomes related to menstrual blood loss (MBL) measurements. The findings typically described a reduction in MBL of approximately 40% to 50% compared to the control group. These results reflect the specific conditions under which the studies were conducted.


Q: Why do official documents caution against driving when first starting Intrax?

Regulatory documents caution against driving or operating machinery because Intrax may cause certain side effects. These can include dizziness or visual disturbances, such as impaired color vision, which could potentially impact concentration and motor skills.


Q: How quickly can someone usually expect Intrax to start working?

Official patient information indicates that the full therapeutic effect of Intrax may take up to 24 hours to be achieved after starting treatment. This is based on how quickly the medicine is absorbed and reaches its peak concentration in the body.


Q: Can Intrax be taken at the same time as other vitamins or supplements?

Official patient guidance describes the importance of reviewing all current medications with a doctor or pharmacist. This review should include any prescription drugs, over-the-counter medicines, and any natural health products or supplements being used, to ensure there are no interactions.


Q: Is Intrax a controlled substance?

The active ingredient in Intrax, tranexamic acid, is not classified as a controlled substance by the U.S. Drug Enforcement Administration (DEA). It is instead classified as an antifibrinolytic prescription medicine.


Q: Is there a generic version of Intrax available yet?

Yes, official regulatory labeling indicates that Intrax is available under its active ingredient, tranexamic acid. This means that an authorized generic formulation of the medicine is available.


Q: What should be done if someone thinks they are experiencing a side effect from Intrax?

If there is suspicion of a serious or life-threatening side effect, such as a blood clot or a severe allergic reaction, emergency medical help is sought immediately. For non-urgent side effects, official guidance directs patients to contact their healthcare professional for discussion.


Q: Is it normal to feel [general feeling, e.g., slightly tired] when first starting Intrax?

In clinical trial data reported to regulatory bodies, fatigue (a feeling of tiredness) was noted in a small percentage of patients taking the drug. Other commonly reported general effects included headache and gastrointestinal symptoms like nausea or diarrhea.


Q: Do lifestyle factors like smoking or alcohol affect Intrax?

Official information indicates that smoking represents a serious risk, particularly when used alongside hormonal contraception, due to the increased risk of blood clots. There are no known specific dietary or alcohol restrictions included in the official patient information for Intrax.


Q: How long after stopping Intrax does it stay in the system?

Pharmacokinetic data shows that the elimination half-life of Intrax is approximately 3 hours. This means it generally takes about 15 hours for the majority of the medicine to be naturally cleared from the bloodstream and excreted by the body.


Q: Can Intrax be used if someone has a history of [general mental health condition]?

Official information warns that Intrax may cause convulsions (seizures), particularly at high doses or if a patient has kidney dysfunction. The risks and benefits are determined by a doctor for any patient with a history of seizure disorders.


Q: Can someone safely stop taking Intrax at any time?

Official guidance describes that if Intrax does not adequately reduce bleeding after two menstrual cycles or appears to stop working, consultation with a doctor is necessary. They can determine if an alternative approach or treatment is warranted.

How should Intrax be stored and disposed of?

Official Storage and Disposal Requirements

Intrax (Tranexamic acid) must be stored and discarded according to regulatory mandates to ensure its quality and safety.

Storage Category Official Requirement
Temperature Store at Controlled Room Temperature (20 C to 25 C; 68 F to 77 F).
Protection Keep protected from light, heat, and moisture. The injection solution must not be frozen or refrigerated.
Container Keep in the original container and ensure the container is tightly closed.
Stability Injection is for single use only; discard any unused portion immediately after administration.
Child Safety Keep out of the reach and sight of children.
Disposal Dispose of outdated or unused medicine by consulting a pharmacist or healthcare professional, following local regulatory requirements for pharmaceutical waste.

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

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