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Pyrazolone

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Pyrazolone, a five-membered-ring lactam, is a derivative of pyrazole that has an additional keto (=O) group.

It has a molecular formula of C₃H₄N₂O.

Examples of derivatives include:

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This article about a heterocyclic compound is a stub. You can help Wikipedia by expanding it.

Anti-inflammatory products (M01A)

Pyrazolidine/Butylpyrazolidines

Acetic acid derivatives
and related substances

Propionic acid derivatives

Other

M: MUS, DF+DRCT

anat (h/n, u, t/d, a/p, l)/phys/devp/hist

noco(m, s, c)/cong(d)/tumr, sysi/epon, injr

proc, drug (M1A/3)

v t e Non-steroidal anti-inflammatory drug (NSAID) products (primarily M01A and M02A, also N02BA)

Salicylates	Aspirin (acetylsalicylic acid) Aloxiprin Benorylate Diflunisal Ethenzamide Magnesium salicylate Methyl salicylate Salsalate Salicin Salicylamide Sodium salicylate

Arylalkanoic acids	Diclofenac Aceclofenac Acemetacin Alclofenac Bromfenac Etodolac Indometacin Indometacin farnesil Nabumetone Oxametacin Proglumetacin Sulindac Tolmetin

2-Arylpropionic acids (profens)	Ibuprofen Alminoprofen Benoxaprofen Carprofen Dexibuprofen Dexketoprofen Fenbufen Fenoprofen Flunoxaprofen Flurbiprofen Ibuproxam Indoprofen^† Ketoprofen Ketorolac Loxoprofen Miroprofen Naproxen Oxaprozin Pirprofen Suprofen Tarenflurbil Tiaprofenic acid

N-Arylanthranilic acids (fenamic acids)	Mefenamic acid Flufenamic acid Meclofenamic acid Tolfenamic acid

Pyrazolidine derivatives	Phenylbutazone Ampyrone Azapropazone Clofezone Kebuzone Metamizole Mofebutazone Oxyphenbutazone Phenazone Sulfinpyrazone

Oxicams	Piroxicam Droxicam Lornoxicam Meloxicam Tenoxicam Ampiroxicam

COX -2 inhibitors	Celecoxib Deracoxib^‡ Etoricoxib Firocoxib^‡ Lumiracoxib^† Parecoxib Rofecoxib^† Valdecoxib^†

Sulfonanilides	Nimesulide

Topically used products	Bendazac Diclofenac Etofenamate Felbinac Flurbiprofen Ibuprofen Indometacin Ketoprofen Naproxen Piroxicam Suprofen

COX-inhibiting nitric oxide donators	Naproxcinod

Others	Fluproquazone

Items listed in bold indicate initially developed compounds of specific groups. ^†Withdrawn drugs. ^‡Veterinary use medications.

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