This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kidney, Subject name: Pharmacology
[{'content': 'Renin antagonist is \nSelect and explain. \nA. Losaan, B. Benazepril, C. Remikiren, D. Imidapril', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Direct renin antagonists are aliskiren, remikiren - could be used for HTN in the future- new drugs aliskiren- oral, remikiren- IV side effects- hypotension, hyperkalemia REF KD Tripathi 8th ed', 'role': 'assistant'}]