My Mum was diagnosed with Alzheimer's earlier this year and at the end of July began taking Memantine. The dosage was increased gradually and she has been taking 20mg since mid August. She also takes a low dose of Sertraline for low mood and anxiety which was prescribed before the diagnosis. Over the last 6 weeks she has been very upset and teary, particularly in the mornings. Has anyone else experienced this long periods of crying and teariness? Could it be a side effect of the Memantine medication or just normal progression of the dementia? We are reluctant to increase the dosage of Sertraline as this has caused unpleasant side effects in the past. Any advice would be appreciated.