sulphonamide - meaning and definition. What is sulphonamide
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What (who) is sulphonamide - definition

CLASS OF PHARMACEUTICAL DRUGS
Sulfa Drugs; Sulfa drugs; Sulfa; Sulpha; Sulfa drug; Sulfa powder; Sulphonamide (medicine); Sulpha drugs; Sulpha drug; Sulfa antibiotic; Sulfonamide antibiotics; Sulfonamide allergy; Sulfa allergy
  • [[Furosemide]] is a sulfonamide, but not a thiazide.
  • [[Hydrochlorothiazide]] is a sulfonamide and a [[thiazide]].
  • PABA]] (center) is the basis for the inhibitory activity of sulfa drugs on tetrahydrofolate (right) biosynthesis.
  • [[Sulfamethoxazole]] is an antibacterial sulfonamide
  • Sulfonamide functional group]]

sulphonamide         
CLASS OF CHEMICAL COMPOUNDS
Sulphonamides; Sulphonamide; Sulphonamide (chemistry); Sulfonamide (chemistry); Sulfonamides; Sultam
[s?l'f?n?m??d]
(US sulfonamide)
¦ noun Medicine any of a class of drugs, derived from sulphanilamide, which are able to prevent the multiplication of some pathogenic bacteria.
Origin
C19: from sulphone + amide.
Sulfonamide         
CLASS OF CHEMICAL COMPOUNDS
Sulphonamides; Sulphonamide; Sulphonamide (chemistry); Sulfonamide (chemistry); Sulfonamides; Sultam
In chemistry, the sulfonamide functional group (also spelled sulphonamide) is -S(=O)2-NH2, a sulfonyl group connected to an amine group. Relatively speaking this group is unreactive.
Sulfonamide (medicine)         
Sulfonamide is a functional group (a part of a molecule) that is the basis of several groups of drugs, which are called sulphonamides, sulfa drugs or sulpha drugs. The original antibacterial sulfonamides are synthetic (nonantibiotic) antimicrobial agents that contain the sulfonamide group.

Wikipedia

Sulfonamide (medicine)

Sulfonamide is a functional group (a part of a molecule) that is the basis of several groups of drugs, which are called sulphonamides, sulfa drugs or sulpha drugs. The original antibacterial sulfonamides are synthetic (nonantibiotic) antimicrobial agents that contain the sulfonamide group. Some sulfonamides are also devoid of antibacterial activity, e.g., the anticonvulsant sultiame. The sulfonylureas and thiazide diuretics are newer drug groups based upon the antibacterial sulfonamides.

Allergies to sulfonamides are common. The overall incidence of adverse drug reactions to sulfa antibiotics is approximately 3%, close to penicillin; hence medications containing sulfonamides are prescribed carefully.

Sulfonamide drugs were the first broadly effective antibacterials to be used systemically, and paved the way for the antibiotic revolution in medicine.