There is no clear guideline specifying that Epinastine Hydrochloride Capsules should be taken at night, but it is recommended that this product be taken at night as some people may experience adverse effects such as drowsiness and dizziness after using the drug, which may affect their daily routine. Epinastine Hydrochloride Capsules belong to the group of histamine H1 receptor antagonists and are commonly used in the treatment of urticaria. Pruritus, allergic rhinitis and the prevention and treatment of unusual psoriasis accompanied by itching. Some people may experience adverse reactions such as itching, drowsiness, dizziness, headache as well as palpitations and dyspnea after using the drug. If the drug is used during the day, it may be impossible to concentrate. It may be life-threatening if the patient is engaged in a hazardous job, so it is more advisable to take the drug at night or before bedtime. If you need to take Epinastine Hydrochloride Capsules, it is recommended that you take the medication under the supervision of a doctor and unauthorized use is strictly prohibited. It should be noted that it is contraindicated for those who are allergic to the components of the product.