Ácido meclofenámico (meclofenamate sodium)

Para qué se usa Ácido meclofenámico

Cita de la sección «Indications and Usage» (indicaciones y uso) de la etiqueta aprobada por la FDA. Se muestra en inglés, tal como la publica la FDA.

Carefully consider the potential benefits and risks of meclofenamate sodium capsules and other treatment options before deciding to use meclofenamate sodium capsules. Use the lowest effective dose for the shortest duration consistent with individual patient treatment goals (see WARNINGS ). Meclofenamate sodium capsules are indicated …

— Etiqueta de la FDA: Meclofenamate Sodium, Mylan Pharmaceuticals Inc., vigente desde el 15 de abril de 2026. Leer la etiqueta completa en DailyMed →

Etiqueta citada: la de la presentación más común (capsule, oral), Meclofenamate Sodium, Mylan Pharmaceuticals Inc.; abarca 2 productos del directorio NDC de la FDA. Las citas sobre efectos secundarios, interacciones, dosis y embarazo de abajo vienen de esta misma etiqueta.

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Enfermedades que menciona la etiqueta

Estos nombres aparecen tal cual en la sección «Indications and Usage» de la etiqueta (según una tabla revisada). Cada página muestra los hospitales cuyos sitios web mencionan la enfermedad.

Especialidades médicas relacionadas

Advertencia en recuadro

La advertencia en recuadro («caja negra») es la advertencia más seria de la FDA en la etiqueta de un medicamento, para riesgos graves o mortales.

Esta etiqueta tiene una advertencia en recuadro. Leerla en la etiqueta completa →

Ácido meclofenámico: lo que dice la advertencia en recuadro

Cita de la advertencia en recuadro (Boxed Warning) de la etiqueta aprobada por la FDA. Se muestra en inglés.

Cardiovascular Thrombotic Events

• Nonsteroidal anti-inflammatory drugs (NSAIDs) cause an increased risk of serious cardiovascular thrombotic events, including myocardial infarction and stroke, which can be fatal. This risk may occur early in treatment and may increase with duration of use (see WARNINGS and PRECAUTIONS).
• Meclofenamate sodium capsules are contraindicated in the setting of coronary artery bypass graft (CABG) surgery (see CONTRAINDICATIONS and WARNINGS).

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Gastrointestinal Risk

• NSAIDs cause an increased risk of serious gastrointestinal adverse events including bleeding, ulceration, and perforation of the stomach or intestines, which can be fatal. These events can occur at any time during use and without warning symptoms. Elderly patients are at greater risk for serious gastrointestinal events. (See WARNINGS).

— Etiqueta de la FDA: Meclofenamate Sodium, Mylan Pharmaceuticals Inc., vigente desde el 15 de abril de 2026. Leer la etiqueta completa en DailyMed →

Efectos secundarios de Ácido meclofenámico

Cita de la sección «Adverse Reactions» (reacciones adversas) de la etiqueta aprobada por la FDA. Se muestra en inglés. Avise a su médico de cualquier efecto secundario que le preocupe.

Incidence Greater Than 1% The following adverse reactions were observed in clinical trials and included observations from more than 2,700 patients, 594 of whom were treated for one year and 248 for at least 2 years. Gastrointestinal The most frequently reported adverse reactions associated with meclofenamate sodium involve the gastrointestinal system.

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In controlled studies of up to 6 months duration, these disturbances occurred in the following decreasing order of frequency with the approximate incidences in parentheses: diarrhea (10% to 33%), nausea with or without vomiting (11%), other gastrointestinal disorders (10%), and abdominal pain *. In long-term uncontrolled studies of up to 4 years duration, one third of the patients had at least one episode of diarrhea some time during meclofenamate sodium therapy. In approximately 4% of the patients in controlled studies, diarrhea was severe enough to require discontinuation of meclofenamate sodium. The occurrence of diarrhea is dose related, generally subsides with dose reduction, and clears with termination of therapy. The incidence of diarrhea in patients with osteoarthritis is generally lower than that reported in patients with rheumatoid arthritis. Other reactions less frequently reported were pyrosis *, flatulence *, anorexia, constipation, stomatitis, and peptic ulcer. The majority of the patients with peptic ulcer had either a history of ulcer disease or were receiving concomitant anti-inflammatory drugs, including corticosteroids which are known to produce peptic ulceration. Cardiovascular: edema Dermatologic: rash *, urticaria, pruritus Central Nervous System: headache *, dizziness * Special Senses: tinnitus * Incidence between 3% and 9%. Those reactions occurring in 1% to 3% of patients are not marked with an asterisk. Incidence Less Than 1%—Probably Causally Related The following adverse reactions were reported less frequently than 1% during controlled clinical trials and through voluntary reports since marketing. The probability of a causal relationship exists between the drug and these adverse reactions. Gastrointestinal: bleeding and/or perforation with or without obvious ulcer formation, colitis, cholestatic jaundice Renal: renal failure Hematologic: neutropenia, thrombocytopenic purpura, leukopenia, agranulocytosis, hemolytic anemia, eosinophilia, decrease in hemoglobin and/or hematocrit Dermatologic: erythema multiforme, Stevens-Johnson Syndrome, exfoliative dermatitis, toxic epidermal necrolysis (TEN), and fixed drug eruption (FDE) Hepatic: alteration of liver function tests Allergic: lupus and serum sickness-like symptoms Incidence Less Than 1%—Causal Relationship Unknown Other reactions have been reported but under conditions where a causal relationship could not be established. However, in these rarely reported events, that possibility cannot be excluded. Therefore, these observations are listed to alert physicians.

— Etiqueta de la FDA: Meclofenamate Sodium, Mylan Pharmaceuticals Inc., vigente desde el 15 de abril de 2026. Esto es solo una parte de la sección. Leer la etiqueta completa en DailyMed →

Interacciones de Ácido meclofenámico

Cita de la sección «Drug Interactions» (interacciones) de la etiqueta aprobada por la FDA. Se muestra en inglés. Dígale a su farmacéutico todos los medicamentos, vitaminas y productos herbales que toma.

ACE-inhibitors Reports suggest that NSAIDs may diminish the antihypertensive effect of ACE-inhibitors. This interaction should be given consideration in patients taking NSAIDs concomitantly with ACE-inhibitors. Aspirin When meclofenamate sodium in administered with aspirin, its protein binding is reduced, although the clearance of free meclofenamate sodium is not altered.

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The clinical significance of this interaction is not known; however, as with other NSAIDs, concomitant administration of meclofenamate sodium capsules and aspirin is not generally recommended because of the potential of increased adverse effects. Furosemide Clinical studies, as well as post-marketing observations, have shown that meclofenamate sodium can reduce the natriuretic effect-of furosemide and thiazides in some patients. This response has been attributed to inhibition of renal prostaglandin synthesis. During concomitant therapy with NSAIDs, the patient should be observed closely for signs of renal failure (see PRECAUTIONS: Renal Effects), as well as to assure diuretic efficacy. Lithium NSAIDs have produced an elevation of plasma lithium levels and a reduction in renal lithium clearance. The mean minimum lithium concentration increased 15% and the renal clearance was decreased by approximately 20%. These effects have been attributed to inhibition of renal prostaglandin synthesis by the NSAID. Thus, when NSAIDs and lithium are administered concurrently, subjects should be observed carefully for signs of lithium toxicity. Methotrexate NSAIDs have been reported to competitively inhibit methotrexate accumulation in rabbit kidney slices. This may indicate that they could enhance the toxicity of methotrexate. Caution should be used when NSAIDs are administered concomitantly with methotrexate. Warfarin The effects of warfarin and NSAIDs on GI bleeding are synergistic, such that users of both drugs together have a risk of serious GI bleeding higher than users of either drug alone.

— Etiqueta de la FDA: Meclofenamate Sodium, Mylan Pharmaceuticals Inc., vigente desde el 15 de abril de 2026. Leer la etiqueta completa en DailyMed →

Dosis de Ácido meclofenámico

Cita de la sección «Dosage and Administration» (dosis y administración) de la etiqueta aprobada por la FDA. Se muestra en inglés. Su dosis es la que le receta su médico: no la cambie por su cuenta.

Carefully consider the potential benefits and risks of meclofenamate sodium capsules and other treatment options before deciding to use meclofenamate sodium capsules. Use the lowest effective dose for the shortest duration consistent with individual patient treatment goals (see WARNINGS). After observing the response to initial therapy with meclofenamate sodium capsules, the dose and frequency should be adjusted to suit an individual patient's needs.

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Usual Dosage For Mild to Moderate Pain The recommended dose is 50 mg every 4 to 6 hours. Doses of 100 mg may be needed in some patients for optimal pain relief (see CLINICAL PHARMACOLOGY). However, the daily dose should not exceed 400 mg (see ADVERSE REACTIONS). For excessive menstrual blood loss and primary dysmenorrheal The recommended dose of meclofenamate sodium is 100 mg 3 times a day, for up to 6 days, starting at the onset of menstrual flow. For rheumatoid arthritis and osteoarthritis (including acute exacerbations of chronic disease) The dosage is 200 mg to 400 mg per day, administered in three or four equal doses. Therapy should be initiated at the lower dosage, then increased as necessary to improve clinical response. The dosage should be individually adjusted for each patient, depending on the severity of the symptoms and the clinical response. The daily dosage should not exceed 400 mg per day. The smallest dosage of meclofenamate sodium that yields clinical control should be employed. Although improvement may be seen in some patients in a few days, 2 to 3 weeks of treatment may be required to obtain the optimum therapeutic benefit. After a satisfactory response has been achieved, the dosage should be adjusted as required. A lower dosage may suffice for long-term administration. If gastrointestinal complaints occur (see WARNINGS and PRECAUTIONS), meclofenamate sodium may be administered with meals or with milk (see CLINICAL PHARMACOLOGY for a description of food effects). If intolerance occurs, the dosage may need to be reduced. Therapy should be terminated if any severe adverse reactions occur.

— Etiqueta de la FDA: Meclofenamate Sodium, Mylan Pharmaceuticals Inc., vigente desde el 15 de abril de 2026. Leer la etiqueta completa en DailyMed →

Ácido meclofenámico en el embarazo

Cita de la parte sobre embarazo (Pregnancy) de la etiqueta aprobada por la FDA. Se muestra en inglés. Pregunte a su médico antes de tomar cualquier medicamento si está embarazada o planea estarlo.

Risk Summary Use of NSAIDs, including meclofenamate sodium capsules, can cause premature closure of the fetal ductus arteriosus and fetal renal dysfunction leading to oligohydramnios and, in some cases, neonatal renal impairment.

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Because of these risks, limit dose and duration of meclofenamate sodium capsules use between about 20 and 30 weeks of gestation, and avoid meclofenamate sodium capsules use at about 30 weeks of gestation and later in pregnancy (see WARNINGS: Fetal Toxicity). Premature Closure of Fetal Ductus Arteriosus Use of NSAIDs, including meclofenamate sodium capsules, at about 30 weeks gestation or later in pregnancy increases the risk of premature closure of the fetal ductus arteriosus. Oligohydramnios/Neonatal Renal Impairment Use of NSAIDs at about 20 weeks gestation or later in pregnancy has been associated with cases of fetal renal dysfunction leading to oligohydramnios, and in some cases, neonatal renal impairment. Data from observational studies regarding other potential embryofetal risks of NSAID use in women in the first or second trimesters of pregnancy are inconclusive. Animal reproductive studies conducted in rats and rabbits have not demonstrated evidence of developmental abnormalities. However, animal reproduction studies are not always predictive of human response. Based on animal data, prostaglandins have been shown to have an important role in endometrial vascular permeability, blastocyst implantation, and decidualization. In animal studies, administration of prostaglandin synthesis inhibitors such as meclofenamate, resulted in increased pre- and post-implantation loss. Prostaglandins also have been shown to have an important role in fetal kidney development. In published animal studies, prostaglandin synthesis inhibitors have been reported to impair kidney development when administered at clinically relevant doses. The estimated background risk of major birth defects and miscarriage for the indicated population(s) is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively. Clinical Considerations Fetal/Neonatal Adverse Reactions Premature Closure of Fetal Ductus Arteriosus Avoid use of NSAIDs in women at about 30 weeks gestation and later in pregnancy, because NSAIDs, including meclofenamate sodium capsules, can cause premature closure of the fetal ductus arteriosus (see WARNINGS: Fetal Toxicity). Oligohydramnios/Neonatal Renal Impairment If an NSAID is necessary at about 20 weeks gestation or later in pregnancy, limit the use to the lowest effective dose and shortest duration possible. If meclofenamate sodium capsules treatment extends beyond 48 hours, consider monitoring with ultrasound for oligohydramnios.

— Etiqueta de la FDA: Meclofenamate Sodium, Mylan Pharmaceuticals Inc., vigente desde el 15 de abril de 2026. Esto es solo una parte de la sección. Leer la etiqueta completa en DailyMed →

Ácido meclofenámico y la lactancia

Cita de la parte sobre lactancia (Nursing Mothers) de la etiqueta aprobada por la FDA. Se muestra en inglés.

It is not known whether this drug is excreted in human milk. Because many drugs are excreted in human-milk and because of the potential for serious adverse reactions in nursing infants from meclofenamate sodium, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.

— Etiqueta de la FDA: Meclofenamate Sodium, Mylan Pharmaceuticals Inc., vigente desde el 15 de abril de 2026. Leer la etiqueta completa en DailyMed →

Cuándo no se debe usar Ácido meclofenámico

Cita de la sección «Contraindications» (contraindicaciones) de la etiqueta aprobada por la FDA. Se muestra en inglés.

Meclofenamate sodium capsules are contraindicated in patients with known hypersensitivity to meclofenamate sodium. Meclofenamate sodium capsules should not be given to patients who have experienced asthma, urticaria, or allergic-type reactions after taking aspirin or other NSAIDs. Severe, rarely fatal, anaphylactic-like reactions to NSAIDs have been reported in such patients (see WARNINGS: Anaphylactoid Reactions and PRECAUTIONS: Preexisting Asthma).

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Meclofenamate sodium capsules are contraindicated in the setting of coronary artery bypass graft (CABG) surgery (see WARNINGS).

— Etiqueta de la FDA: Meclofenamate Sodium, Mylan Pharmaceuticals Inc., vigente desde el 15 de abril de 2026. Leer la etiqueta completa en DailyMed →

Sobredosis de Ácido meclofenámico

Cita de la sección «Overdosage» (sobredosis) de la etiqueta aprobada por la FDA. Se muestra en inglés. Si alguien pudo haber tomado demasiado, llame a Poison Help al 1-800-222-1222 (o al 911 en una emergencia).

The following is based on the little information available concerning overdosage with meclofenamate sodium and related compounds. After a massive overdose, CNS stimulation may be manifested by irrational behavior, marked agitation and generalized seizures. Following this phase, renal toxicity (falling urine output, rising creatinine, abnormal urinary cellular elements) may be noted with possible oliguria or anuria and azotemia.

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A 24 year-old male was anuric for approximately one week after ingesting an overdose of 6 to 7 grams of meclofenamate sodium. Spontaneous diuresis and recovery subsequently occurred. Management consists of emptying the stomach by emesis or lavage and instilling an ample dose of activated charcoal into the stomach. There is some evidence that charcoal will actively absorb meclofenamate sodium, but dialysis or hemoperfusion may be less effective because of plasma protein binding. The seizures should be controlled by an appropriate anticonvulsant regimen. Attention should be directed throughout, by careful monitoring, to the preservation of vital functions and fluid-electrolyte balance. Dialysis may be required to correct serious azotemia or electrolyte imbalance.

— Etiqueta de la FDA: Meclofenamate Sodium, Mylan Pharmaceuticals Inc., vigente desde el 15 de abril de 2026. Leer la etiqueta completa en DailyMed →

Presentaciones y vía de administración

Empresas que tienen este medicamento

Empresas en el directorio NDC de la FDA: la empresa que aparece en el envase (fabricante o distribuidor), con su número de productos con receta.

• Mylan Pharmaceuticals Inc.2 productos

Historial de aprobación de la FDA

• ANDA: Solicitud abreviada (ANDA): así se aprueba una versión genérica.

Aprobaciones de genéricos (1)

• ANDA071081Mylan · 3 de septiembre de 1986

Escasez

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Retiros del mercado

No aparece ningún retiro vinculado a estos productos (por su código NDC) en los informes de la FDA.

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• Últimos retiros de medicamentos de la FDATodos los medicamentos, los más recientes primero
• Artritis reumatoideEnfermedad que menciona la etiqueta: hospitales que la tratan
• Mylan Pharmaceuticals Inc.Fabricante o distribuidor
• Todos los medicamentos con receta de la A a la ZBusque por nombre genérico, de marca o en español

Fuentes

1. Etiqueta aprobada por la FDA en DailyMed (Biblioteca Nacional de Medicina) — Meclofenamate Sodium, Mylan Pharmaceuticals Inc., vigente desde el 15 de abril de 2026; vía openFDA, datos de la FDA exportados el 30 de octubre de 2026, consultados el 31 de octubre de 2026
2. NDC Directory (openFDA) — Administración de Alimentos y Medicamentos de los EE. UU. (FDA), datos de la FDA exportados el 30 de octubre de 2026, consultados el 31 de octubre de 2026
3. Drugs@FDA (openFDA) — Administración de Alimentos y Medicamentos de los EE. UU. (FDA), datos de la FDA exportados el 30 de octubre de 2026, consultados el 31 de octubre de 2026
4. Drug recall enforcement reports (openFDA) — Administración de Alimentos y Medicamentos de los EE. UU. (FDA), datos de la FDA exportados el 27 de octubre de 2026, consultados el 31 de octubre de 2026
5. Drug shortages (openFDA) — Administración de Alimentos y Medicamentos de los EE. UU. (FDA), datos de la FDA exportados el 30 de octubre de 2026, consultados el 31 de octubre de 2026
6. Nombre en español: RxNorm (Biblioteca Nacional de Medicina de EE. UU.) y Wikidata, vinculados por el identificador RxNorm (RxCUI) del principio activo, sin coincidencias aproximadas.

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