Uroantiseptics and intestinal antiseptics are a pharmacological group of antimicrobial agents that establish high therapeutic concentrations directly at the sites of infection—the urinary tract and the intestinal lumen. This category also includes topical agents used for purulent-inflammatory processes.
UroantisepticsAccumulate in urine to combat urinary tract infections (UTIs)
Intestinal agentsAct locally within the intestinal lumen due to poor systemic absorption
NitrofurantoinAdministered orally 3–4 times daily for cystitis and pyelonephritis
Topical useNitrofural is used in surgery, dentistry, and ENT practice
Topical and Local Antimicrobial Agents
This category includes nitrofural, which is used topically for the treatment and prevention of various purulent-inflammatory processes. It is widely utilized across multiple medical specialties:
Ophthalmology: for blepharitis and conjunctivitis.
ENT practice: for otitis and tonsillitis (angina).
Dentistry: for stomatitis and gingivitis.
Surgery: for osteomyelitis.
Urinary Tract Infection Agents (Uroantiseptics)
The key characteristic of uroantiseptics is their ability to achieve high concentrations directly in the urine. This makes them essential for treating urinary system pathologies.
Nitrofurantoin: taken orally 3–4 times daily. Indicated for urinary tract infections (pyelonephritis, cystitis, urethritis), as well as for prophylaxis prior to instrumental interventions such as cystoscopy or catheterization.
Furazidin: also concentrates in the urine. Used both orally for treating urinary tract infections and topically for irrigation of wounds, body cavities, and douching.
Agents for Intestinal Infections
These drugs act specifically within the intestinal lumen because they are poorly absorbed from the gastrointestinal tract.
Nifuroxazide: indicated for various gastrointestinal infections, including acute diarrhea and enterocolitis.
Furazolidone: achieves high concentrations in the intestinal lumen due to low absorption. Used for bacterial and protozoan infections, including giardiasis and trichomoniasis.
Mnemonic
Uro = urine, entero = gut: they work right where they accumulate.
Frequently asked questions
What is the adult dosage of furazolidone?
For adults, furazolidone is prescribed in standard therapeutic doses. Exact numerical values in milligrams are not specified in the source; the treatment course typically lasts 5–7 days.
Features of administration:
Alternative therapy — used for moderate to severe acute intestinal infections, predominantly the dysentery-like (colitic) variant.
Local action — the drug is poorly absorbed in the gastrointestinal tract, creating a high concentration within the intestinal lumen; used for bacterial and protozoan infections, including giardiasis and trichomoniasis.
Hidden MAO inhibition — furazolidone possesses monoamine oxidase inhibitory activity.
What is the antimicrobial spectrum of furazidin?
The antimicrobial spectrum of furazidin (Furazidinum) includes pyogenic coccal flora. The drug is a nitrofuran derivative with mild monoamine oxidase inhibitory activity.
Routes of administration:
Oral — for urinary tract infections, as it concentrates in urine.
Topical — as a 0.1% solution for washing purulent wounds, abscess cavities, empyema, and fistulae.
Intravenous — administration at a dose of 300 mL is possible.
Where do uroantiseptics achieve high concentrations?
Uroantiseptics achieve high therapeutic concentrations directly in the urine, allowing for effective treatment of pathogens causing urinary tract infections.
What are the indications for topical nitrofural?
Nitrofural is used topically for osteomyelitis in surgery, blepharitis and conjunctivitis in ophthalmology, stomatitis and gingivitis in dentistry, and otitis and tonsillitis in ENT practice.
Why is furazolidone effective for intestinal infections?
Furazolidone is poorly absorbed from the gastrointestinal tract, resulting in a high concentration within the intestinal lumen, which is necessary to combat bacterial and protozoan infections.
Go deeper
Pharmacokinetic profile of nitrofurans
Comparative characteristics of furazidin and nitrofurantoin
Indications for furazolidone in protozoan infections
Prophylaxis of urinary tract infections during instrumental procedures
Topical formulations of nitrofural in surgical practice