 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST] , tell your doctor or pharmacist your medical history, especially of: other heart problems (such as recent heart attack, rheumatic heart disease of the mitral valve), previous stroke, low blood pressure, blood vessel problems, dehydration, recent head injury, anemia, kidney problems. This drug may make you dizzy. Alcohol or marijuana (cannabis) can make you more dizzy. Do not drive, use machinery, or do anything that needs alertness until you can do it safely. Limit alcoholic beverages. Talk to your doctor if you are using marijuana (cannabis). Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products). Older adults may be more sensitive to the side effects of this drug, especially dizziness and lightheadedness, which could increase the risk of falls. During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor. Hydralazine passes into breast milk. It is unknown if isosorbide dinitrate passes into breast milk. Consult your doctor before breast-feeding.The interactions of BiDil Oral: Drug interactions may change how your medications work or increase your risk for serious </s>