What are different drugs reactions causing angioedema alone?

➢ Aspirin and other NSAIDs are other common causes of angioedema generally involving the face. ➢ Responses to the NSAIDs may be complex with mixed cutaneous and respiratory symptoms. ➢ Unlike anaphylaxis, anaphylactoid reactions are most likely related to inhibition of (cyclooxygenase) COX-l by NSAIDS and leukotriene production ➢ ACE inhibitors cause a higher rate of angioedema in black patients than in non-black patients. ➢ Angioedema to ACE inhibitors usually occurs within the first week of treatment (may be within days, months, or even years of the treatment) and the drug should be withdrawn immediately in the patients who experience a reaction ARBs similar to ACEi <10%