Heart failure patients need multiple medications. Each one treats a different symptom or contributing factor. Each medication comes with its own instructions and rules. They can't do their job if you don't take them correctly. You and your caregivers should work with your healthcare team to understand the medications and how they should be taken; when, how often and in what amounts. It's important to discuss all of the drugs you take with your doctor and understand their desired effects and possible side effects. Remember that your healthcare provider and pharmacist are your best sources of information. Don't hesitate to ask them questions about your medicines.