system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
All of the following drugs are documented to be porphyrinogenic EXCEPT:
assistant
The correct answer is  Aspirin is not a porphyrinogenic drug. There is a very exhaustive list of drugs given in the table from Harrison; I am giving some impoant drugs! Carbamezapine , chloramphenicol, clindamycin Dihydroergotamine , droperidol Hydralazine Fosphenytoin Indinavir Ketamine, ketoconazole Lidocaine Medroxyprogesterone , mifepristone , Nitrofurantoin, norethistronate Phenobarbitone, phenytoin Rifampicin Spirinolactone Taxmoxifem, testosterone Valproate