Ketotifen tablets are used to treat symptoms of allergic rhinitis and allergic bronchial asthma. Adverse reactions such as drowsiness, fatigue, dry mouth, nausea, dizziness, headache, unresponsiveness, and weight gain may occur after taking ketotifen tablets. Contraindications to this product are not known, but it is contraindicated in patients who are allergic to any of the components of this drug, and should be used with caution in pregnant women. And it is not advisable to drive a vehicle or engage in aerial or mechanical work as well as operate precision instruments while taking the drug. Ketotifen tablets should not be combined with central nervous system depressants or alcohol, and should not be combined with oral hypoglycemic drugs. If you need to take this drug, please consult a professional doctor, follow the doctor’s instructions, reasonable use of medication, do not self-medication.