AMBOLEV-HD contains Hydroxyzine which belongs to the group of medicines called Antihistamines. It is used to treat allergic reactions (itching, sneezing), for anxiety and tension as well as for sedation (for inducing sleep in medical conditions and after anesthesia). An allergy is an immune response to foreign elements which is not harmful to the body. These foreign elements are known as allergens. Allergic condition varies from person to person. Some might be allergic to some foods and seasonal allergies like hay fever and while others may be allergic to pollen or pet dander. Anxiety is a sense of uneasiness, dread, and fear. It might cause feel restless, tense, sweat, and have a rapid heartbeat. It may be a usual response to stress. AMBOLEV-HD is not recommended for use in patients having porphyria, heart problems, and low salt levels in the body. Before taking AVERZINE SYRUP, inform your doctor if you have liver, kidney, or mental health problems. AMBOLEV-HD is not recommended to use among pregnant and breastfeeding women. Your doctor will prescribe the right dose depends on your child’s age, body weight and health condition. The most common side effects of taking AVERZINE SYRUP are feeling sleepy, dry mouth, feeling tired, drowsiness, and headache. Contact your doctor if any of the above side effects worsen or persist for a longer duration.