 <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]  all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval. Some products that may interact with this drug include: drugs to treat erectile dysfunction-ED or pulmonary hypertension (such as sildenafil, tadalafil), riociguat, vericiguat. Some products have ingredients that could worsen your heart failure. Tell your pharmacist what products you are using, and ask how to use them safely (especially cough-and-cold products, diet aids, or NSAIDs such as ibuprofen/naproxen). Isosorbide mononitrate is very similar to isosorbide dinitrate. Do not use medications containing isosorbide dinitrate while using isosorbide mononitrate. This medication may interfere with certain lab tests (such as cholesterol levels), possibly causing false test results. Make sure lab personnel and all your doctors know you use this drug. Does isosorbide mononitrate oral interact with other drugs you are taking? Enter your medication </s>