This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
[{'content': 'Gancyclovir is used intravitreallyfor treatment of? \nSelect and explain. \nA. Influenza, B. Rhinovirus, C. HZV, D. CMV retinitis', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., CMV retinitis Some drugs which are used intravitreally are :? 1) Bevacizumab : inhibits VEGF action; used in metastatic colorectal cancer; off label use as intravitreous injection to slow progression of neovascular macular degeneration. 2) Foscarnet : CMV retinitis. 3) Gancyclovir : CMV retinitis. 4) Ranibizumab : slow macular degeneration. 5) Pegaptanib : neovascular age related macular degeneration.", 'role': 'assistant'}]