Dizziness after discontinuing venlafaxine may be due to a withdrawal reaction caused by the sudden discontinuation of the drug. Venlafaxine, or venlafaxine hydrochloride, is an antidepressant drug mainly used in the treatment of various types of depression and generalized anxiety disorder, and the medication must be guided by a professional doctor. The medication should be taken consistently, and if it needs to be stopped, the dosage should be gradually reduced under the guidance of a professional doctor, rather than suddenly stopping the medication. If the medication is taken for more than six weeks and suddenly stopped, intolerance reactions, or withdrawal reactions, such as insomnia, dizziness, anxiety, nausea and so on, may occur. Common adverse reactions include nausea, dry mouth, headache, sweating, loss of appetite, tactile disturbances, and taste disturbances. It is contraindicated for those who are allergic to the product and the ingredients contained in it, pregnant and lactating women, and children under 18 years of age. Sudden dizziness after taking venlafaxine discontinuation, you should promptly go to the hospital, with the doctor to take the regulation, usually need to continue to take the drug, but need to follow the doctor’s instructions to reduce the amount, and ultimately stop the drug.