Levocetirizine Hydrochloride Tablets are generally safe for long-term use, but they need to be used under the guidance of a physician. Levocetirizine Hydrochloride Tablets is a kind of anti-allergic drugs, belonging to the selective histamine H1 receptor antagonist, suitable for the treatment of urticaria, allergic rhinitis, eczema, dermatitis, pruritus and other diseases. For people with the above conditions, the drug can be used for long-term use under the guidance of a physician. Contraindications to the use of the drug include hypersensitivity to the product, people taking sedatives at the same time, people who drink alcohol, pregnant and breastfeeding women, caution in the presence of current or pre-existing hepatic dysfunction, elderly patients, and people who need to work at heights, driving or manipulating machinery. Drowsiness, dry mouth, headache, fatigue and other adverse reactions are common during the use of the drug, usually without special treatment can be relieved.