What Are Sulfonamides?

‘Sulfa drugs’ were some of the original antibiotics, and are still in use today.

Sulfonamides, or “sulfa drugs”, are drugs used to treat bacterial infections.

They may be advised to treat urinary tract infections (UTIs), bronchitis, eye infections, bacterial meningitis, pneumonia, ear infections, severe irritation, traveler’s diarrhea and other conditions.

Sometimes, medications are also used to control seizures and other medical concerns.

Drugs for viral infections such as colds or flu. Will not work

Sulfonamides work by stopping the growth of bacteria in the body.

They come in a variety of forms and can be taken orally, conditionally, vaginally, or as eyeglasses.

The discovery of sulfonamides paved the way for the widespread use of antibiotics. The first sulfonamide, prontosyl, was tested in 1930.

Common Sulfonamides

Commonly recommended sulfonamides include:

Gentricin (sulfisacazole)
Bacterium or Septra
Azulfidine (sulfasalazine)
Zongran (Zonsamide)

Side Effects of Sulfonamides

Sulfonamides may include side effects.

Skin rub
Nausea or vomiting
Yellow skin
Sensitivity to light

Allergies to Sulfonamides

Allergies to sulfonamides are common.

Tell your doctor if you are allergic to food colors, guards or animals.

Tell your doctor right away if you experience symptoms of a severe allergic reaction, including rash, hives, difficulty breathing, chest tightness, or swelling of the face, lips, or tongue. ۔

Sulfonamide Warnings

Tell your doctor about all your medical conditions – especially kidney, liver, or blood disorders – before taking sulfonamides.

Sulfonamides can cause blood problems, especially if taken for a long time.

These drugs can cause serious, even fatal, skin rashes. Tell your doctor right away if you notice itching or abnormal changes in the skin. Just tell

Your doctor may want to carefully monitor your body’s response to this medication with repeated observations. Keep all appointments in your doctor’s office and laboratory.

These medicines should not be given to children under 2 months of age.

Older people may be more sensitive to the side effects of sulfonamides. Talk to your doctor if you are over 65.

Tell your doctor about all of these prescriptions, non-prescription, illegal, recreational, herbal, nutritional, or dietary medications before using sulfonamides.

Tell your healthcare provider that you are taking sulfonamides before performing any type of medical procedure, including a dental examination or procedure.

These medicines can make your skin more sensitive to the sun. Avoid unnecessary exposure to sunlight, and wear sunscreen and protective clothing when outdoors.

Sulfonamides can make you dizzy. Do not engage in activities that require caution until you know how your medication affects you.

Tell your doctor if your symptoms do not get better or worse after you start taking sulfonamides.

Sulfonamides and Pregnancy

Animal studies have shown that sulfonamides can cause birth defects.

If you are pregnant, or may become pregnant, tell your doctor before taking any of these medications.

These drugs can also get into breast milk. Do not drink milk while taking sulfonamide.


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