Nervous system disorders: Dizziness, gait abnormal, seizures.
Gastrointestinal disorders: Constipation, vomiting, pancreatitis.
Infections and infestations: Fungal infections.
Vascular disorders: Hypertension, venous thrombosis/thromboembolism.
General disorders and administration site conditions: Headache, fatigue.
Psychiatric disorders: Somnolence, confusion, hallucinations (hallucinations have mainly been reported in patients with severe Alzheimer's disease), psychotic reactions.
Alzheimer's disease has been associated with depression, suicidal ideation and suicide. These events have been reported in patients treated with Memantine.
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