Antipyretics

Paracetamol, or acetaminophen, is an analgesic and antipyretic agent used to treat fever and mild to moderate pain. It is a widely available over-the-counter drug sold generically or under various brand names, including Tylenol and Panadol.

Naproxen, sold under the brand name Aleve among others, is a nonsteroidal anti-inflammatory drug (NSAID) used to treat pain, menstrual cramps, and inflammatory diseases such as rheumatoid arthritis, gout and fever. It is taken orally. It is available in immediate and delayed release formulations. Onset of effects is within an hour and lasts for up to twelve hours. Naproxen is also available in salt form, naproxen sodium, which has better solubility when taken orally.

thumb|300px|Tablets of ibuprofen, a common antipyretic

thumb|Oral solution bottle of dypirone in its packaging (Portuguese lettering) Metamizole or dipyrone (informally known as the "Mexican aspirin") is a painkiller, spasm reliever, and fever reliever drug. It is most commonly given by mouth or by intravenous infusion. It belongs to the ampyrone sulfonate family of medicines and was patented in 1922. Metamizole is marketed under various trade names. It was first used medically in Germany under the brand name "Novalgin", later becoming widely known in Slavic nations and India under the name "Analgin".

Phenacetin (; acetophenetidin, '''N-(4-ethoxyphenyl)acetamide''') is a pain-relieving and fever-reducing drug, which was widely used following its introduction in 1887. It was withdrawn from medicinal use as dangerous from the 1970s (e.g., withdrawn in Canada in 1973, and by the U.S. Food and Drug Administration in 1983).

Nimesulide is a nonsteroidal anti-inflammatory drug (NSAID) with pain medication and fever reducing properties. Its approved indications are the treatment of acute pain, the symptomatic treatment of osteoarthritis, and primary dysmenorrhoea in adolescents and adults above 12 years old.

Phenazone (INN and BAN; also known as phenazon, antipyrine (USAN), antipyrin, or analgesine) is an analgesic (pain reducing), antipyretic (fever reducing) and anti-inflammatory drug. While it predates the term, it is often classified as a nonsteroidal anti-inflammatory drug (NSAID). Phenazone was one of the earliest synthetic medications — when it was patented in 1883, the only synthetic medical chemicals on the market were chloral hydrate, a sedative (as well as at least one derivative of that chemical), trimethylamine, and iodol (tetraiodopyrrol), an early antiseptic. One of the earliest wid

Aminophenazone (or aminopyrine, amidopyrine, Pyramidon) is a non-narcotic analgesic substance. It is a pyrazolone and a derivative of phenazone, which also has anti-inflammatory and antipyretic properties. While inexpensive and effective, especially in the treatment of rheumatism, the drug carries a serious risk of severe and sometimes fatal side-effects, including agranulocytosis. While its production and use have been banned in many countries, including France, Thailand, India, Japan and USA, it is still sometimes used in the developing world.

Salicylamide ('''o-hydroxybenzamide or amide of salicyl''') is a non-prescription drug with analgesic and antipyretic properties. Its medicinal uses are similar to those of aspirin. Salicylamide is used in combination with both aspirin and caffeine in the over-the-counter pain remedy PainAid. It was also an ingredient in the over-the-counter pain remedy BC Powder but was removed from the formulation in 2009, and Excedrin used the ingredient from 1960 to 1980 in conjunction with aspirin, acetaminophen, and caffeine. It was used in later formulations of Vincent's powders in Australia as a substi

thumb|Saridon (Combination drug with Propyphenazone) from Hoffmann-La Roche|Hoffman-La Roche, ca. 1950/60 Propyphenazone (known as isopropylantipyrine in Japan) is a derivative of phenazone with similar analgesic and antipyretic effects. Originally patented in 1931, propyphenazone is marketed as a combination formulation with paracetamol and caffeine for treatment of primary headache disorder.

chemical compound

Benorilate (INN), or benorylate, is an ester-linked codrug of aspirin with paracetamol. It is used as an anti-inflammatory and antipyretic medication. In the treatment of childhood fever, it has been shown to be inferior to paracetamol and aspirin taken separately. In addition, because it is converted to aspirin, benorylate is not recommended in children due to concerns about Reye syndrome.

Tylenol is a brand of medication, advertised for reducing pain, reducing fever, and relieving the symptoms of allergies, cold, cough, headache, and influenza. An active ingredient in these medications is acetaminophen (paracetamol), an analgesic and antipyretic, although other ingredients with significant effects (such as codeine, caffeine or diphenhydramine) are included in some variants. Like the generic names paracetamol and acetaminophen, the brand name Tylenol is derived from a chemical name for the compound, N-acetyl-para-aminophenol.

Ampyrone is a metabolite of aminopyrine with analgesic, anti-inflammatory, and antipyretic properties. While the parent drug, aminopyrine, has been discouraged due to the risk of agranulocytosis, ampyrone itself has significantly lower toxicity. It is used as a reagent for biochemical reactions producing peroxides or phenols. Ampyrone stimulates liver microsomes and is also used to measure extracellular water.

Bucetin (INN, BAN) is an analgesic and antipyretic that is no longer marketed. Chemically, it is similar to phenacetin with which it shares the risk of carcinogenesis. Bucetin was withdrawn from use in 1986 due to renal toxicity.

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Metacetamol (developmental code name BS-749), also known as 3-hydroxyacetanilide and AMAP, is a non-toxic regioisomer of paracetamol with analgesic and antipyretic properties, but has never been marketed as a drug.

Dipyrocetyl is a pharmaceutical drug used as an analgesic and antipyretic.

Dendrobine is an alkaloid found in Dendrobium nobile at an average of 0.5% by weight. It is a colorless solid at room temperature. It is related to the picrotoxin family of natural products. When given a fatal dose, death is usually caused by convulsions. It possesses a molecular structure that attracted interest in its total synthesis by organic chemists.