allergialääkkeet

Allergialääkkeet, also known as antihistamines, are medications used to treat allergic reactions. Allergies occur when the immune system overreacts to a normally harmless substance, called an allergen. Common allergens include pollen, dust mites, pet dander, and certain foods. When exposed to an allergen, the body releases histamine, a chemical that causes the symptoms of an allergic reaction.

Allergialääkkeet work by blocking the action of histamine. This helps to reduce or eliminate symptoms such as itching, sneezing, runny nose, watery eyes, and hives. They are available in various forms, including oral tablets, capsules, liquids, nasal sprays, and eye drops.

There are several types of allergialääkkeet. First-generation antihistamines, such as diphenhydramine, can cause drowsiness and are often used for short-term relief. Second-generation antihistamines, like loratadine and cetirizine, are less likely to cause drowsiness and are suitable for long-term use. Nasal sprays and eye drops are applied directly to the affected area, providing targeted relief for nasal and eye symptoms.

Allergialääkkeet are generally safe and effective for most people. However, like all medications, they can have side effects. Common side effects of oral antihistamines include drowsiness, dry mouth, and dizziness. It is important to read the medication label and consult a healthcare professional or pharmacist if you have any questions or concerns about using allergialääkkeet, especially if you have underlying health conditions or are taking other medications.