Iris 5Mg Tablet Contains Desloratadine As Its Active Ingredient. Desloratadine Is A Second-Generation Antihistamine Used To Relieve Allergy Symptoms. It Works By Blocking The Action Of Histamine, A Substance Produced By The Body During Allergic Reactions, Which Helps Reduce Symptoms Such As Runny Nose, Sneezing, Itchy Or Watery Eyes, And Itching Of The Throat Or Nose. Desloratadine Is Also Effective In Treating Chronic Urticaria (Hives), Reducing The Severity Of Rash And Itching Associated With This Condition. Side Effects Common Side Effects May Include: Dry Mouth Headache Drowsiness (Although Less Common Than With First-Generation Antihistamines) Fatigue Nausea Serious Side Effects Are Rare But Could Include Allergic Reactions Such As Swelling Of The Face, Lips, Tongue, Or Throat, Which May Cause Difficulty Breathing. If You Experience Any Of These Symptoms, Seek Medical Attention Immediately. Precautions Avoid Alcohol While Taking Desloratadine As It May Increase Drowsiness. Individuals With Severe Liver Or Kidney Disease Should Consult A Healthcare Provider Before Use. If Pregnant Or Breastfeeding, Consult A Doctor Before Using This Medication. Desloratadine Should Be Used With Caution In Children Under The Age Of 6.