Description Lorhistina® is a histamine H1-receptor antagonist. It is given for symptomatic relief of allergic conditions including rhinitis and chronic urticaria. How to use Adults including the elderly and Children 12 years of age and over:10mg (one tablet) or two 5mL spoonfuls once daily.Children aged 6 to 12 years: 10mg (one tablet) or two 5mL spoonfuls of syrup once daily.Children aged 2 to 5 yrs: 5mg (one tablet) or one 5mL spoonful of syrup once daily. Precautions -Hypersensitivity.-Drowsiness can occur and it may affect the performance of skilled tasks. Occasionally reports of convulsions in patients taking antihistamines also call for caution in patients with epilepsy. Caution is also needed in hepatic impairment. Antihistamines should not be given to neonates owing to the increased susceptability to antimuscarinic effect.