Pharmaceutical The US Food and Drug Administration has approved the New Drug Application for Namzaric (formerly known as MDX-8704), a fixed-dose combination (FDC) of memantine extended-release, a NMDA receptor antagonist, and donepezil, an acetylcholinesterase inhibitor, from Ireland-headquartered generics major Actavis and partner Adamas Pharmaceuticals. 26 December 2014