Drug/Small Molecule:
mefenamic acid

2D structure

Overview

Generic Names: Acide Mefenamique; Mefanamic Acid; Mefenacid; Mefenaminsaeure; Mephenamic Acid; Mephenaminic Acid; Methenamic Acid
Trade Names: Bafameritin-M; Bafhameritin-M; Bonabol; Coslan; HL 1; In-M; Lysalgo; Mefacit; Namphen; Parkemed; Ponalar; Ponstan; Ponstan Forte; Ponstel; Ponstil; Ponstyl; Pontal; Tamany Bonsan; Tanston; Vialidon
PharmGKB Accession Id: PA450347

Description

A non-steroidal anti-inflammatory agent with analgesic, anti-inflammatory, and antipyretic properties. It is an inhibitor of cyclooxygenase. PubChem (source: Drug Bank)

Indication

For the treatment of rheumatoid arthritis, osteoarthritis, dysmenorrhea, and mild to moderate pain, inflammation, and fever. (source: Drug Bank)

ATC Therapeutic Category

  • M01AG:Fenamates

Pharmacology, Interactions, and Contraindications

Mechanism Of Action

Mefenamic acid binds the prostaglandin synthetase receptors COX-1 and COX-2, inhibiting the action of prostaglandin synthetase. As these receptors have a role as a major mediator of inflammation and/or a role for prostanoid signaling in activity-dependent plasticity, the symptoms of pain are temporarily reduced. (source: Drug Bank)

Pharmacology

Mefenamic acid, an anthranilic acid derivative, is a member of the fenamate group of nonsteroidal anti-inflammatory drugs (NSAIDs). It exhibits anti-inflammatory, analgesic, and antipyretic activities. Similar to other NSAIDs, mefenamic acid inhibits prostaglandin synthetase. (source: Drug Bank)

Food Interactions

Avoid alcohol.
Take with food. (source: Drug Bank)

Absorption, Distribution, Metabolism, Elimination & Toxicity

Biotransformation

Mefenamic acid undergoes metabolism by CYP2C9 to 3-hydroxymethyl mefenamic acid, and further oxidation to a 3-carboxymefenamic acid may occur. The activity of these metabolites has not been studied. Mefenamic acid is also glucuronidated directly. (source: Drug Bank)

Protein Binding

90% (source: Drug Bank)

Absorption

Mefenamic acid is rapidly absorbed after oral administration. (source: Drug Bank)

Toxicity

Oral, rat LD<sub>50</sub>: 740 mg/kg. Symptoms of overdose may include severe stomach pain, coffee ground-like vomit, dark stool, ringing in the ears, change in amount of urine, unusually fast or slow heartbeat, muscle weakness, slow or shallow breathing, confusion, severe headache or loss of consciousness. (source: Drug Bank)

Isomeric SMILES Code:

Cc1cccc(c1C)Nc2ccccc2C(=O)O (source: Drug Bank)

A list of non-curated publications that mention this drug along with other genes is available.

Drug Targets

Gene Description
PTGS1 Uncurated Annotation (source: Drug Bank)
PTGS2 Uncurated Annotation (source: Drug Bank)

PharmGKB Curated Pathways

A list of non-curated publications that mention this drug along with other drugs is available.

Drug Interactions

Drug Description
acenocoumarol Uncurated Annotation The NSAID increases the anticoagulant effect (source: Drug Bank)
alendronate Uncurated Annotation Increased risk of gastric toxicity (source: Drug Bank)
anisindione Uncurated Annotation The NSAID increases the anticoagulant effect (source: Drug Bank)
cyclosporine Uncurated Annotation Monitor for nephrotoxicity (source: Drug Bank)
dicumarol Uncurated Annotation The NSAID increases the anticoagulant effect (source: Drug Bank)
lithium Uncurated Annotation The NSAID increases serum levels of lithium (source: Drug Bank)
methotrexate Uncurated Annotation The NSAID increases the effect and toxicity of methotrexate (source: Drug Bank)
warfarin Uncurated Annotation The NSAID increases the anticoagulant effect (source: Drug Bank)

Non-Curated Information

A list of non-curated publications that mention this drug along with other diseases is available.

Additional Datasets

These datasets are minimally curated and are sorted alphabetically by title.

  1. The Connectivity Map: using gene-expression signatures to connect small molecules, genes, and disease

LinkOuts

Web Resource:
Wikipedia
DrugBank:
DB00784
KEGG Compound ID:
C02168
KEGG Drug ID:
D00151
PubChem Compound ID:
4044
PubChem Substance ID:
148984
IUPHAR Ligand ID:
2593

Common Searches

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Non-Curated Publications

A list of non-curated publications that mention this drug is available.

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