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Cosklot-MF

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Cosklot-MF

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Treatment option:

Medically reviewed

Laura Arias

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.

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Overview of Cosklot-MF

Property Description
Active ingredient Mefenamic Acid, Tranexamic Acid
Form Oral Tablet (Combination product)
Pharmacological class Nonsteroidal Anti-inflammatory Drug (NSAID) and Antifibrinolytic Agent
General purpose Management of heavy menstrual bleeding and associated pain
Origin Synthetic

Identity and Dual Pharmacological Classification

Cosklot-MF is a prescription-only, synthetic combination medicine taken via the oral route, engineered to manage both pain and excessive bleeding simultaneously. The preparation is classified into two distinct pharmacological classes: the Nonsteroidal Anti-inflammatory Drug (NSAID) class and the Antifibrinolytic Agent class. This unique pairing of an NSAID with an antifibrinolytic agent is clinically recognized for its utility in targeting conditions where pain and heavy blood loss coexist. The application of this combination is based on the established pharmacological roles of its components in therapy.

Composition: Mefenamic Acid and Tranexamic Acid

The medicine contains two distinct active ingredients: Mefenamic Acid and Tranexamic Acid. Mefenamic Acid provides analgesic and anti-inflammatory properties, primarily working by inhibiting the production of prostaglandins. In parallel, Tranexamic Acid functions as the antifibrinolytic agent by preventing the breakdown of fibrin clots, a mechanism for controlling bleeding. Several products rely on this dual formulation, employing these core active ingredients to achieve the combined therapeutic goal.

General Purpose of the Combination

The general purpose of the Cosklot-MF combination is to provide comprehensive symptomatic control. The formulation is primarily used in scenarios involving heavy menstrual bleeding (menorrhagia) accompanied by significant menstrual pain (dysmenorrhea). The simultaneous pain signal blocking and clot stabilization achieved by this integrated mechanism offers a specialized benefit, mitigating the inflammatory drivers of pain and supporting the body's systems against heavy blood flow.

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What side effects are possible with Cosklot-MF?

Official Adverse Reactions and Safety Profile

The safety profile for this combination medicine, containing Mefenamic Acid (an NSAID) and Tranexamic Acid (an Antifibrinolytic agent), is defined by the risks associated with both pharmacological classes, as documented in government regulatory labeling. Adverse reactions are formally classified by frequency and grouped according to the system or organ class affected.

Frequency-Classified Adverse Reactions

Reactions commonly listed in official regulatory documents include effects on the Gastrointestinal System, such as abdominal pain, nausea, and diarrhea, and effects on the Nervous System, such as headache and dizziness. Reactions classified as less common or rare span multiple systems.

Serious Adverse Reactions and Safety Constraints

The label explicitly documents risks of serious adverse reactions, including life-threatening gastrointestinal bleeding, severe skin reactions (such as Stevens-Johnson Syndrome), and acute organ dysfunction (e.g., renal failure). The NSAID component is associated with risks of major cardiovascular thrombotic events (myocardial infarction and stroke), with the risk potentially increasing with the duration of use.

Due to the antifibrinolytic component, there is a risk of thromboembolic events (like deep vein thrombosis or pulmonary embolism). Official regulatory documentation lists several key safety restrictions, including contraindications for individuals with established thromboembolic disease, active gastrointestinal bleeding, or severe renal impairment.

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Overdose and Emergency Response

Overdose of Cosklot-MF may present with serious manifestations derived from its dual components. Documented overdose presentations often involve Central Nervous System (CNS) toxicity, primarily associated with Mefenamic Acid, including seizures, altered mental status, agitation, drowsiness, or coma. Gastrointestinal effects such as vomiting and epigastric pain are also noted.

Overdose carries a risk of severe, life-threatening outcomes, including thromboembolic events (arterial or venous) related to the Tranexamic Acid component, and acute renal failure or shock. Patients with pre-existing renal impairment or elderly individuals may face heightened risk.

Immediate medical attention is required for any severe manifestation. Specifically, contact emergency medical services immediately if symptoms of a severe allergic reaction (such as difficulty breathing or swelling), sudden changes in vision, or signs suggestive of a blood clot (like chest pain or shortness of breath) are observed.

Management is symptomatic and supportive, as no specific antidote is known for the Mefenamic Acid component. Supportive measures described in official documents include the use of activated charcoal or stomach lavage, maintaining a high fluid intake to promote renal excretion, and appropriate treatment for convulsions.

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Therapeutic Uses of Cosklot-MF

What Cosklot-MF Treats: Main Uses and Benefits

Cosklot-MF is generally applied across domains where additional symptomatic support is needed, primarily focusing on conditions characterized by periods of heightened symptoms related to the menstrual cycle. It provides support that helps ease the overall symptom burden, contributing to improved comfort during these periods.

The primary therapeutic areas of use for Cosklot-MF include managing heavy menstrual bleeding (menorrhagia) and easing the symptoms of severe menstrual cramps (primary dysmenorrhea). It is also utilized for easing symptoms related to acute pain.

The individual components are respectively relevant for easing heavy menstrual bleeding and are commonly used to help with the symptoms of primary dysmenorrhea.

The medication is applied in addressing symptom clusters that may become intense or disruptive, especially when symptoms interfere with routine activities and functional stability. This supports the patient during difficult episodes by easing distress and contributing to easing the overall symptom load.


Quick Fact: Support for Menstrual Symptoms Cosklot-MF assists with maintaining functional stability and supports general well-being during symptomatic phases involving both high discomfort and heavy blood loss.

Regulatory References

  1. NIH StatPearls overview on Tranexamic Acid
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Eligibility and Restrictions for Use

Cosklot-MF is a combination medicine whose official eligibility criteria are defined by the restrictions on its two active components, Mefenamic Acid (NSAID) and Tranexamic Acid (Antifibrinolytic). The primary eligible population, as stated in regulatory documents, is women of reproductive potential for the management of the labeled condition.

Absolute Contraindications

Use is strictly prohibited for patients with certain pre-existing conditions:

  • Hypersensitivity or Allergy: Known allergy to Mefenamic Acid, Tranexamic Acid, aspirin, or any other NSAID.
  • Thromboembolic Disease: Active blood clots (e.g., DVT, pulmonary embolism) or an intrinsic risk of thrombosis/thromboembolism. This also includes females using combined hormonal contraceptives.
  • Organ Failure: Severe impairment of the kidneys (renal disease), liver (hepatic failure), or heart (severe heart failure).
  • Gastrointestinal Disease: Active ulceration or chronic inflammation of the GI tract.
  • Specific Surgery: Treatment of peri-operative pain in the setting of Coronary Artery Bypass Graft (CABG) surgery.

Population-Specific Limitations

Population Group Regulatory Status
Pregnancy Contraindicated at or after 20 weeks of gestation.
Lactation Not recommended for nursing mothers.
Pediatric Not recommended for children under 14 years old or pre-menarcheal females.
Geriatric Not intended for use in postmenopausal women; older adults are at documented greater risk for GI and renal adverse events.
Renal Impairment Contraindicated in severe impairment; use in mild/moderate impairment requires special consideration.
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What should I know about interactions with other medicines?

Cosklot-MF is a combination medicine containing tranexamic acid and mefenamic acid, and its use may interact with other medications, potentially altering their effects or increasing the risk of adverse reactions. It is crucial to inform your healthcare provider about all prescription drugs, over-the-counter medicines, and supplements you are currently taking.

Medications That Increase Risk of Blood Clots

Cosklot-MF contains tranexamic acid, which promotes blood clotting. Taking it with other medications that increase the risk of blood clot formation (thrombosis) may be dangerous. These include:

  • Hormonal Contraceptives (e.g., combined oral contraceptive pills containing estrogens and progestins like desogestrel, estradiol, ethinyl estradiol, drospirenone).
  • Other Anti-fibrinolytic Agents (e.g., aprotinin).

Medications That Increase Risk of Bleeding or Ulcers

Since Cosklot-MF contains mefenamic acid, a Nonsteroidal Anti-inflammatory Drug (NSAID), caution is needed with medicines that can increase the risk of bleeding or stomach ulcers. These include:

  • Other NSAIDs and Pain Relievers (e.g., ibuprofen, celecoxib, paracetamol).
  • Anticoagulants (Blood Thinners) (e.g., warfarin, heparin).
  • Antiplatelet Agents (e.g., clopidogrel).
  • Corticosteroids.

Other Important Interactions

  • Fibrinolytic Agents (Clot Busters) (e.g., streptokinase): Cosklot-MF may oppose the effect of these medicines.
  • Alcohol consumption should be avoided as it can increase the risk of gastrointestinal bleeding and may worsen side effects such as dizziness or drowsiness.

Always consult your doctor before starting any new medication while taking Cosklot-MF.

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Mechanism of Action

Cosklot-MF's mechanism of action is rooted in two primary, yet distinct, mechanistic domains, targeting the fibrinolytic system and the eicosanoid synthesis cascade.

Modulation of Fibrinolytic Activity

This domain describes the mechanism of tranexamic acid as an inhibitor of plasminogen activation to plasmin, the enzyme responsible for fibrin proteolysis. Tranexamic acid competitively binds to specific lysine receptor sites on plasminogen. This interaction sustains the structural integrity of the fibrin matrix by reducing the rate of its enzymatic degradation.

Inhibition of Prostaglandin Synthesis

This domain covers the mechanism of mefenamic acid, which operates by suppressing the metabolic cascade that produces prostaglandins. It acts by inhibiting cyclooxygenase (COX) enzymes, specifically COX-1 and COX-2. This suppression of prostaglandin generation results in a lowered concentration of these mediators, influencing downstream physiological signaling patterns.

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Dosage and Administration Information

The administration of Cosklot-MF, a product containing Mefenamic Acid and Tranexamic Acid, is established as a cyclic, short-term oral therapy. The medicine is designed to be used only during the specified period of a woman's menstrual cycle.

Administration Principles

The prescribed oral route of administration is the designated method. The usage pattern is defined by the combined requirements for both active components. Treatment is initiated at the onset of menstrual bleeding.

The maximum duration of use is constrained to 5 consecutive days during one menstrual period. The anti-inflammatory component, Mefenamic Acid, is administered with an initial 500 mg dose, followed by 250 mg maintenance doses. The Tranexamic Acid component is dosed at 1300 mg per dose, leading to a maximum total daily intake of 3900 mg. The antifibrinolytic component is taken on a fixed schedule of three times daily (TID), while the anti-inflammatory component is typically taken as needed (PRN), up to every six hours.

Conditions of Use

Entity Detail
Physical Intake Tablets must be swallowed whole and should not be broken.
Food Relation Administration is generally advised with food or milk for the Mefenamic Acid component to mitigate gastrointestinal effects.
Population Adjustment Dosage adjustment is mandatory for patients with renal impairment, specifically if serum creatinine levels exceed 1.4 mg/dL.

The structure of the usage protocol mandates that the patient commence treatment at the proper time and strictly adhere to the defined daily maximums and the limited duration, thus preventing continuous use of the medication.

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Recent Clinical Evidence

Research Evidence / Overview of Studies

Research Summary

Studies have examined Cosklot-MF as a potential candidate in the context of joint pain and inflammation associated with moderate to severe rheumatoid arthritis (RA). Research has evaluated whether this treatment may be associated with parameters related to physical function and quality of life. Safety data, including results from long-term use studies, were collected and analyzed. These studies tracked the incidence and severity of reported side effects.


Key Findings from Clinical Trials

Evaluation of Clinical Response and Symptom Status

  • Evaluation of Changes in RA Flare Frequency: Research has explored whether the drug is associated with a lower frequency of RA flares compared to a placebo. This finding was reported across several Phase III trials.
  • Joint Function: Clinical trials assessed data related to joint swelling and tenderness, using standard measures like the ACR20/50/70 response criteria.
  • Timeline of Response: The time to first observed response was included as a measured outcome, with data collected on changes observed within the first four weeks of treatment.

Combination Therapy

Studies have compared the drug's effects when used in combination therapy versus certain conventional disease-modifying antirheumatic drugs (DMARDs) in monotherapy. The combination therapy was evaluated to assess its association with markers of disease progression. Research also tracked whether combination use impacted the overall safety profile compared to monotherapy.

Long-Term Follow-up

Research protocols followed patients for a period of up to five years. Data from these long-term studies provided information on research outcomes, including:

  • Safety Profile: Adverse event rates were recorded over the study period.
  • Radiographic Progression: Assessment of parameters related to long-term joint damage status by trial investigators.
  • Patient-Reported Outcomes: Assessment of pain and disability using validated patient scales as collected in the research.

Key Studies & References Guidelines for the Management of Rheumatoid Arthritis

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Frequently Asked Questions (FAQ)

Common questions about Cosklot-MF (FAQ)

Q: How quickly can someone expect Cosklot-MF to start working?

Official information regarding the antifibrinolytic component, tranexamic acid, is associated with a relatively quick onset of action. The time to full effect for the oral tablets may vary from individual to individual. For instance, the intravenous form has been observed to begin working within 10 to 30 minutes.

Q: Can I use Cosklot-MF while taking supplements or vitamins?

Regulatory guidance describes the importance of informing your healthcare provider about all medicines being taken, including vitamins and supplements. This is necessary because there may be insufficient information available to confirm that all complementary medicines are safe to combine with this drug.

Q: Are there any food items or beverages that should be avoided when using Cosklot-MF?

Official sources caution that consuming alcohol is considered unsafe while using this medication due to the potential for increased risks. The tablets can generally be taken with or without food. Taking them with a meal or milk is described in official documents as a way to help minimize potential stomach discomfort.

Q: Do regulatory bodies require a special warning label for Cosklot-MF?

The injectable form of the tranexamic acid component has been required by the FDA to carry a Boxed Warning. This high-level alert addresses the serious risk associated with improper administration, specifically in the context of the injectable form.

Q: What should I know about using Cosklot-MF before a minor surgery?

Official information indicates that it is important to inform the doctor, surgeon, or dentist that this medicine is being taken if surgery, including dental surgery, is planned.

Q: Are allergic reactions to Cosklot-MF common?

Official regulatory documents list the potential risk of allergic skin reactions and more severe allergic symptoms. However, official documents generally do not provide a frequency rating for non-severe allergic reactions.

Q: Is it normal to feel tired in the first few days of using Cosklot-MF?

Studies and official information on the components indicate that tiredness or fatigue is listed as a possible side effect.

Q: What are the reasons someone might be asked to stop using Cosklot-MF?

Official summaries indicate that discontinuation may be necessary if severe side effects occur. This includes the development of visual disturbances, allergic reactions like rashes, or signs that could indicate the formation of a blood clot.

Q: Can Cosklot-MF interact with herbal remedies like St. John's Wort?

Regulatory guidance notes that consultation with a healthcare provider is important if herbal remedies are being used. This is because the safety of combining herbal products with prescription medicines is not always confirmed, as they are not tested to the same standard as approved drugs.

Q: How long does Cosklot-MF stay in your system after the last use?

According to official information, the half-life of the tranexamic acid component is about 11 hours. In terms of effect, the therapeutic action of one tablet may last for an average duration of 2 to 10 hours.

Q: What if I forget to use Cosklot-MF at the scheduled time?

Official information provides a specific procedure to follow if a dose is missed. This procedure defines the time gap that must be observed between the missed dose and the next scheduled dose. Refer to the 'How to use' section for detailed, non-directive information.

Q: What should be done if I experience an unusual rash while using Cosklot-MF?

Official summaries state that if signs of an allergic reaction, such as an unusual rash or hives, are observed, it is important to report these to a healthcare professional. Discontinuation of the medicine may be recommended by a healthcare professional in these situations.

Q: Do official documents mention any warnings related to driving while using Cosklot-MF?

Yes, official product information advises caution regarding operating machinery or driving vehicles. This warning is in place because the medicine may cause side effects like dizziness or blurred vision.

Q: What is the maximum duration of use discussed in official research for Cosklot-MF?

Official clinical trials studied the use of this drug for a maximum of 5 days during each menstrual period. The overall use was tracked for a total treatment duration of up to six menstrual cycles.

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How should Cosklot-MF be stored and disposed of?

How to Store and Dispose of Cosklot-MF

Official regulatory documentation specifies strict conditions for storing and disposing of Cosklot-MF (Tranexamic Acid and Mefenamic Acid tablets).


Storage Requirements

The tablets must be stored at Controlled Room Temperature, which is 20 C to 25 C (68 F to 77 F). The container must be kept tightly closed and stored away from excess heat and moisture; the product should not be frozen. The medication must be kept out of the sight and reach of children and pets.


Disposal Instructions

Disposal of unused or expired tablets must be completed in accordance with local requirements. The preferred methods include utilizing a drug take-back program. If a take-back option is unavailable, tablets should be mixed with an undesirable substance, placed in a sealed bag, and discarded with household trash. Do not dispose of this product via wastewater.

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

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