Arzep nasal spray 10 ml relieves nasal symptoms such as sneezing, stuffy nose itching, or runny nose caused by allergies or other condition. It contains Azelastine as the active ingredient which falls into the category of drugs known as antihistamines. The active ingredient blocks the action of histamine (a natural substance produced in the body) that are responsible for causing nasal symptoms. The nasal spray effectively works in adults and children who are at least five years old. Make sure you use under the supervision of a doctor. Before using it, inform your doctor if you have an infection, ulcer, or injury inside the nose. Since Azelastine is a nasal spray, do not expose the rest of your body to the medicine. It is for external use only, so never consume it orally.