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ran·i·biz·u·mab | \ ˌra-nə-ˈbi-zü-ˌmab 
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\Medical Definition of ranibizumab
: an antiangiogenic drug that is a genetically engineered monoclonal antibody administered by injection into the eye especially to treat age-related macular degeneration and diabetic retinopathy
Note: Ranibizumab acts by binding to and inhibiting the activity of vascular endothelial growth factor. It is marketed under the trademark Lucentis.
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