What are First Generation Antihistamines?
First generation antihistamines are medications that work to relieve the symptoms associated with allergic rhinitis, such as sneezing, itchy eyes, and a runny nose. These medications are also known as "classic" or "sedating" antihistamines. Examples of first generation antihistamines include chlorpheniramine (Chlor-Trimeton), diphenhydramine (Benadryl), and hydroxyzine (Atarax).
How Do First Generation Antihistamines Work?
First generation antihistamines work by blocking the action of histamine, a chemical in the body that causes allergic reactions. When histamine is blocked, the allergy symptoms are reduced.
What Are the Benefits of First Generation Antihistamines?
The main benefit of first generation antihistamines is that they are effective in relieving symptoms of allergic rhinitis. They can also provide relief from other allergies such as hay fever and hives. Additionally, they can be used to treat motion sickness, nausea, and vomiting.
What Are the Side Effects of First Generation Antihistamines?
First generation antihistamines can cause side effects such as drowsiness, dizziness, dry mouth, and blurred vision. These medications can also interact with other medications, so it's important to check with your doctor before taking them.
When Should First Generation Antihistamines Be Used?
First generation antihistamines should be used only when needed, as they can cause drowsiness and other side effects. It is important to talk to your doctor about your allergies and what medications are available to you. Your doctor can help you decide which medication is right for you.
