Potential adverse side effects include toxicity of the nervous system, kidney and liver, headaches, and rare, but serious skin conditions such as Stevens Johnson syndrome and toxic epidermal necrolysis. (sciencedaily.com)
Severe cutaneous reactions to allopurinol — which are called toxic epidermal necrolysis (TEN) and Stevens - Johnson syndrome (SJS)-- are rare, but can be extremely serious. (sciencedaily.com)
We wish to focus on severe drug - induced adverse events, such as Stevens - Johnson syndrome, toxic epidermal necrolysis, and drug - induced liver injury. (genomicmedicinealliance.org)