Citalopram hydrobromide eat sleepy may be an adverse drug reaction, or the disease itself caused by the symptoms. 1. Adverse drug reactions: citalopram hydrobromide instructions point out that the product can be seen drowsiness, fatigue, excessive sweating, dry mouth, insomnia, diarrhea, nausea, decreased appetite and physical fitness, decreased libido, abnormal sensations, dizziness, tinnitus, yawning and other adverse reactions. Therefore, drowsiness after taking this product may be due to adverse drug reactions. The drug is contraindicated for those who are allergic to the components of the product. 2. caused by the disease itself: citalopram hydrobromide is used to treat depression. People with depression can also exhibit symptoms such as sleepiness, drowsiness and fatigue, which may be caused by the disease itself. Therefore taking citalopram hydrobromide should be consulted with a doctor if you experience recurring manifestations of drowsiness. The drug should be used as prescribed by the doctor.