has_Ingredient has_MoA has_PE drug associated with AE in adult drug associated with AE in senior used to treat disease Decreased Central Nervous System Glutamate Activity [PE] Memantine [Chemical/Ingredient] M [Preparations] NMDA Receptor Antagonists [MoA] MEMANTINE http://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=17b61eb2-2498-4d2e-9e1f-b0c2c21c9347#nlm34084-4,https://www.accessdata.fda.gov/drugsatfda_docs/label/2013/021487s010s012s014,021627s008lbl.pdf Memantine 6719 Active W8O17SJF3T 4021409 C0025242 MEMANTINE Ingredient C53888 N0000148824 <VANDF_Record>50.416^4085^</VANDF_Record><VA_File>50.416</VA_File><VA_IEN>4085</VA_IEN> <VANDF_Record>50.6^3913^</VANDF_Record><VA_File>50.6</VA_File><VA_IEN>3913</VA_IEN> dementia headache AE dizziness AE confusion AE constipation AE