 <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]  olmesartan. They both work by relaxing blood vessels so blood can flow more easily. Amlodipine is a calcium channel blocker and olmesartan is an angiotensin receptor blocker (ARB). How to use Amlodipine-Olmesartan Take this medication by mouth with or without food as directed by your doctor, usually once daily. The dosage is based on your medical condition and response to treatment. To reduce your risk of side effects, your doctor may direct you to start this medication at a low dose and gradually increase your dose. Follow your doctor's instructions carefully. If you also take certain drugs to lower your cholesterol (bile acid-binding resins such as cholestyramine, colesevelam, colestipol), take amlodipine/olmesartan at least 4 hours before any of these medications. Take this medication regularly to get the most benefit from it. To help you remember, take it at the same time each day. Keep taking this medication even if you feel well. Most people with high blood pressure do not feel sick. It may take up to 2 weeks before you get the full benefit of this drug. Tell your doctor if your condition does not improve or if </s>