Sulfafurazole

Chemical structure of Sulfafurazole

Sulfafurazole, also known as sulfisoxazole, is a sulfonamide antibiotic used to treat a variety of bacterial infections. It is part of the sulfonamide class of drugs, which are synthetic antimicrobial agents that contain the sulfonamide group. Sulfafurazole is effective against a broad spectrum of Gram-positive and Gram-negative bacteria.

Mechanism of Action

Sulfafurazole works by inhibiting the bacterial enzyme dihydropteroate synthase, which is involved in the synthesis of folic acid. Bacteria require folic acid for the synthesis of nucleic acids, which are essential for DNA replication and cell division. By blocking this pathway, sulfafurazole prevents bacterial growth and multiplication, acting as a bacteriostatic agent.

Clinical Uses

Sulfafurazole is used to treat a variety of infections, including:

• Urinary tract infections
• Respiratory tract infections
• Otitis media
• Meningitis

It is often used in combination with other antibiotics to enhance its effectiveness and reduce the risk of resistance.

Side Effects

Common side effects of sulfafurazole include:

• Nausea
• Vomiting
• Diarrhea
• Rash

Serious side effects can include:

• Stevens-Johnson syndrome
• Agranulocytosis
• Aplastic anemia

Patients with a known allergy to sulfonamides should avoid using sulfafurazole.

Pharmacokinetics

Sulfafurazole is well absorbed from the gastrointestinal tract and is widely distributed throughout the body. It is metabolized in the liver and excreted primarily in the urine. The drug has a half-life of approximately 6 to 12 hours, allowing for multiple daily dosing.

Related Pages

• Sulfonamide (medicine)
• Antibiotic
• Bacterial resistance