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What formulations are sulfonamides are available?
Sulfonamides are available as tablets, injections, and oral solutions.
What about taking sulfonamides during pregnancy or while breastfeeding?
Use of sulfonamides may cause bilirubin to be displaced from proteins in the infant's blood. Displacement of bilirubin can lead to jaundice and a dangerous condition called kernicterus in the infant. For this reason, sulfamethoxazole/ trimethoprim should not be used near term (late in pregnancy) among women. Sulfonamides (for example, sulfamethoxazole/trimethoprim) should not be used by nursing mothers because sulfamethoxazole is excreted in breast milk and can cause kernicterus.
REFERENCE: FDA prescribing information.
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Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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