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Who can and cannot take sulfasalazine

Who can take sulfasalazine

Most adults and children aged 2 years or over can take sulfasalazine.

Who may not be able to take sulfasalazine

Sulfasalazine is not suitable for some people. To make sure it's safe for you, tell your doctor if you:

  • have ever had an allergic reaction to sulfasalazine or any other sulfonamides, aspirin, or any other salicylates such as methyl salicylate or choline salicylate
  • have ever had an allergic reaction to any other medicine
  • have a rare blood condition called porphyria
  • have any problems with your kidneys or liver
  • are pregnant, trying to get pregnant or breastfeeding
  • have a genetic condition called glucose-6-dehydrogenase deficiency
  • have ever had asthma
  • often get infections or have a condition that makes you more likely to get infections

Page last reviewed: 5 March 2025
Next review due: 5 March 2028