Histadin 5 mg Tablet belongs to the 'antihistamine' class of drugs, primarily used to treat allergies. It also treats allergic rhinitis/allergic nasal inflammation, hives (skin rash), and itching associated with skin diseases. Allergy is an immune response produced by the body in response to allergens. Allergic rhinitis is inflammation and allergy of the nose caused by an allergen, such as pollen, dust, mould, or skin flakes from certain animals.

Histadin 5 mg Tablet contains Olopatadine, an antihistamine drug. It inhibits the release of histamine (chemical messengers released due to an allergic response in the body) from mast cells. Thereby treats symptoms of allergies like runny nose, sneezing, and itching.

Your doctor will advise on how often you need to take Histadin 5 mg Tablet based on your medical condition. Some common side effects of Histadin 5 mg Tablet include sleepiness, malaise (general discomfort), dry mouth, oedema/fluid retention, rashes, and itching. These side effects do not require medical attention and gradually resolve over time. If the side effects persist or worsen, please reach out to a doctor. 

Please do not use Histadin 5 mg Tablet if you are allergic to any of its components. It is advised to check with your doctor before using Histadin 5 mg Tablet if you are pregnant, currently breastfeeding, or taking any other prescribed or non-prescribed medicines. Avoid driving or operating machines since Histadin 5 mg Tablet may cause drowsiness. Alcohol consumption should be avoided to prevent any adverse reactions during the treatment. Histadin 5 mg Tablet should be used for children only when the doctor has prescribed it.

Histadin 5 mg Tablet contains Olopatadine, an antihistamine drug. It treats signs and symptoms of allergic rhinitis. It relieves congestion, sneezing, and runny nose caused by an allergy. It is also useful in treating rashes and itching of the skin. Histadin 5 mg Tablet works by inhibiting the release of histamine (chemicals that cause allergic symptoms) from mast cells. 

• Sleepiness
• Malaise (general discomfort)
• Dry mouth
• Oedema/fluid retention
• Rashes
• Itching sensation 

Before taking Histadin 5 mg Tablet , let your doctor know if you have a history of heart, liver and kidney diseases. It is advised to check with your doctor before using Histadin 5 mg Tablet if you are pregnant or breastfeeding. Avoid driving or operating machines since Histadin 5 mg Tablet may cause drowsiness and affect your driving ability. Alcohol consumption may also intensify side effects like drowsiness; hence avoid its intake during the course. Histadin 5 mg Tablet should be used in children only when the doctor has prescribed it.

• Know your triggers like allergens, such as pollen, dust, and food items.
• Quit smoking and avoid passive smoking. 
• Drink warm fluids to help loosen congestion and lubricate the throat.
• Eat a healthy diet and exercise regularly to boost your immune system.
• Learning breathing exercises will help you move more air in and out of your lungs.
• Avoid alcohol and limit caffeine consumption.
• Try to maintain good hygiene to keep your skin clean and irritant-free.