up next, as bob schieffer gets to sign off tomorrow, we'll look back on his remarkable career. . ...but it's the ingredients inside that really matter for heart health. new bayerultra omega-3 has two times the concentration of epa and dha as the leading omega-3 supplement. new bayer pro ultra omega-3. caring for someone with alzheimer's means i am a lot of things. i am her best friend. i am her ally. so i asked about adding once-daily namenda xr to her current treatment for moderate to severe alzheimer's. it works differently. when added to another alzheimer's treatment, it may improve overall function and cognition. and may slow the worsening of symptoms for a while. vo: namenda xr doesn't change how the disease progresses. it shouldn't be taken by anyone allergic to memantine, or who's had a bad reaction to namenda xr or its ingredients. before starting treatment, tell their doctor if they have or ever had, a seizure disorder, difficulty passing urine liver, kidney or bladder problems, and about medications they're taking. certain medications, changes in diet, or medical conditions may affect the amount of namenda xr in the body and may increase side effects