Lorhistina 10mg TabletsLorhistina contains Loratadine as the active ingridient. It is an antihistamine medicine that helps with the symptoms of allergies. It's used to treat: hay fever conjunctivitis (red, itchy eyes) eczema hives (urticaria) reactions to insect bites and stings some food allergies Loratadine is known as a non drowsy antihistamine. It's much less likely to make you feel sleepy than some other antihistamines. Dosage You'll usually take loratadine once a day.