Tell your doctor about all your current medicines and any you start or stop using, especially:
diazoxide (an injectable blood pressure medication); or
an MAO inhibitor--isocarboxazid, linezolid, methylene blue injection, phenelzine, rasagiline, selegiline, tranylcypromine, and others.
This list is not complete. Other drugs may interact with hydralazine, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are listed in this medication guide.
 Hydralazine drug interactions (more detail)
