sulfa

Pre-penicillin medicine

Sulfa refers to a class of synthetic antibacterial drugs derived from sulfanilamide, widely used before penicillin became available: sulfa drugs, sulfa antibiotics.

Someone with a sulfa allergy reacts badly to these medications.

The term appears in compound names for specific drugs: sulfadiazine, sulfamethoxazole.

Also spelled sulpha, especially in British English.

infection

urinary

Relating to urine

otitis · sinusitis · cystitis · meningitis · toxoplasmosis · staphylococcus · streptococcus · salmonella · pathogen · microbe

allergy

hypersensitivity

Exaggerated response to stimuli

  • rashHeedless or skin irritation
  • hivesRaised itchy skin reaction
  • urticariaRaised itchy skin welts

anaphylaxis · angioedema · itching · pruritus · bronchospasm · wheezing · contraindication · allergen · antihistamine · epinephrine

antibiotic

antimicrobial

Kills or inhibits germs

folate · inhibitor · prescription

prophylaxis

prevention

Stopping something before occurring

malaria · travelers · rheumatic · recurrent · maintenance · dosing · regimen · suppressive · protective

Opposites
antibiotic origin

sulfapenicillin

Fungus-derived infection fighter

streptomycin · cephalosporins · erythromycin · tetracycline · biologics

mechanism of action

sulfapenicillin

Fungus-derived infection fighter

vancomycin · fluoroquinolones · broad-spectrum antibiotics

Phrases
Family

sulfonate, sulfa drug, sulfa drugs

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Concrete · Rated G