SHEET /m/metamizole · PubChem CID 522325 · CAS 68-89-3 · REV 2026.07
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Metamizole
from sourceC13H16N3NaO4S · 333.34 g/mol
dipyrone · Novaldin · Diprofarn · Neomelurbrin
What is Metamizole?
A non-opioid painkiller and fever reducer widely used in Europe and Latin America, withdrawn in the United States and UK over a rare blood disorder. from source
CategoryPrescription medicine
Chemical familyAromatics
LeaderboardsBiggest
Fig. 1 · 2D structure RDKit
SMILES
CC1=C(C(=O)N(N1C)C2=CC=CC=C2)N(C)CS(=O)(=O)[O-].[Na+]Where you'll find it
Dispensed on prescription, not sold on a shelf. See the rest of the prescription medicine group.
Toxicity & hazards
DangerIrritantHealth hazardEnvironmentalH302, H317, H334, H361, H372, H411from source