Fluvoxamine is mainly used for the treatment of depressive episodes or obsessive-compulsive disorder, a small amount is recommended to be taken once at night before bedtime; if a large amount of the drug needs to be taken several times, it is recommended to take a larger dose at night before bedtime. In addition, contraindications and adverse reactions should be noted. 1. Timing of medication (1) Treatment of depression: when the total daily dose is low, it is recommended to take it once in the evening; when the total daily dose needs to be divided into two times, it is recommended to take it once in the morning and once in the evening; if the dosage of the two times is different, it is recommended to take the larger one in the evening before going to sleep. (2) Treatment of obsessive-compulsive disorder (OCD): When the total daily dose is low, it is best to take the medicine once before going to bed. If the daily dose is large, it can be divided into several doses, but it is recommended to take the larger dose before going to bed. 2. Adverse reactions and contraindications (1) Adverse reactions such as loss of appetite, increased anxiety, headache, unusual nervousness, drowsiness, tachycardia, abdominal pain, constipation or diarrhea, weakness, etc., it is recommended to reduce or change to other drugs. (2) Combined use with tizanidine, thioridazine, alosetron, pimozide and other drugs is prohibited. (3) Discontinuation of irreversible or reversible anti-monoamine oxidase drugs for 1 to 2 weeks is required before use. (4) Allergy to the components of the drug is prohibited. Fluvoxamine needs to be used under the guidance of clinicians, unauthorized use of drugs is prohibited; the above timing of the use of medication is only for reference, the specific use of medication, please follow the doctor’s instructions.