Generically known as memantine hydrochloride, the side effects of memantine hydrochloride include dizziness, headache, constipation, and drowsiness. Due to individual variability, it is impossible to generalize. Memantine hydrochloride is an antitremor paralysis medication that can be used to treat moderately severe to severe Alzheimer’s type dementia. Patients using memantine hydrochloride should take it in conjunction with their own conditions and under the guidance of a doctor. Some patients may experience side effects such as dizziness, headache, constipation, drowsiness, etc. During the use of Memantine Hydrochloride, a few patients may also experience hallucinations, confusion, anxiety, vomiting, increased libido and other side effects. People who are allergic to the ingredients of memantine hydrochloride need to contraindicate the use of this drug, and for pregnant and breastfeeding women, children, and the elderly, all need to be careful with the use of the drug, so as not to cause harm to the body. During the treatment with memantine hydrochloride, patients should follow the doctor’s instructions for regular review, in order to understand the recovery of the disease. In daily life, it is necessary to ensure sufficient rest to help improve the symptoms. Patients need to strictly follow the doctor’s instructions to use the drug.