Sulfonamides

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Sulfonamides (sul-FON-a-mides) or sulfa medicines are used to treat infections. They will not work for colds, flu, or other virus infections.

Sulfonamides are available only with your doctor's prescription, in the following dosage forms:

Oral

Sulfadiazine
- Tablets (U.S. and Canada)
Sulfamethizole
- Tablets (U.S.)
Sulfamethoxazole
- Tablets (U.S. and Canada)
Sulfisoxazole
- Oral suspension (U.S.)
- Syrup (U.S.)
- Tablets (U.S. and Canada)

Some commonly used brand names are:

In the U.S. -

In Canada -

Note:

For quick reference, the following sulfonamides are numbered to match the corresponding brand names.

This information applies to the following medicines:
1.	Sulfadiazine (sul-fa-DYE-a-zeen)‡§
2.	Sulfamethizole (sul-fa-METH-a-zole)†
3.	Sulfamethoxazole (sul-fa-meth-OX-a-zole)§
4.	Sulfisoxazole (sul-fi-SOX-a-zole)‡
† Not commercially available in Canada
‡ Generic name product may be available in the U.S.
§ Generic name product may be available in Canada

		Next section
		Sulfonamides: Before Using

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