 <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]  unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.The uses of Felodipine Oral: Felodipine is used to treat high blood pressure (hypertension). Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. Felodipine is known as a calcium channel blocker. By blocking calcium, this medication relaxes and widens blood vessels so blood can flow more easily. How to use Felodipine ER Take this medication by mouth on an empty stomach as directed by your doctor, usually once a day. If stomach upset occurs, felodipine may be taken with a light meal. The dosage is based on your medical condition and response to treatment. Swallow the tablets whole. Do not crush or chew the tablets. Doing so can release all of the drug at once, increasing the risk of side effects. Use this medication regularly in order to get the most benefit from it. Remember to use it at the same time each day as directed. Keep taking this medication even if you feel well. Most people with high blood pressure do not feel sick. This drug is not effective if you use it only when chest pain occurs </s>