Antihistamines
Different drugs can treat allergies, including steroids and allergy shots, but usually the first thing to try is antihistamine.
How Antihistamines Treat Allergies
When your body comes into contact with your allergic triggers – pollen, ragweed, pet or Russian dust particles, for example – it makes chemistry called histamine. They make your nose tissue lavish (make it stuffy), to run your nose and eyes, and your eyes, nose and sometimes mouth to itch. Sometimes you can also call it an itchy rash, hives on your skin.
Antihistamines lower or block histamine, so they prevent allergic symptoms.
These medicines work well to overcome various types of allergic traits, including seasonal (grass fever), indoor and food allergies. But they can not overcome every symptom.
To treat nasal congestion, your doctor may recommend a decongestant. Some medicines combine an antihistamine and decongestant.
How are antihistamines available?
They come in various forms, including tablets, capsules, liquids, nose spray and eyedrops. Some are available only by prescription. Other you can buy at the counter (OTC) in your local pharmacy.
Prescription Antihistamines include:
• Azelastine eyedrops (Optivar)
• Azelastine nasal sprays (Astelin, Astepro)
• Carbinoxamine (Palgic)
• Cyproheptadine
• Desloratadine (Clarinex)
• Emedastine eyedrops (Emadine)
• Hydroxyzine (Atarax, Vistaril)
• Levocabastine eyedrops (Livostin)
• Levocabastine oral (Xyzal)
• Azelastine nasal sprays (Astelin, Astepro)
• Carbinoxamine (Palgic)
• Cyproheptadine
• Desloratadine (Clarinex)
• Emedastine eyedrops (Emadine)
• Hydroxyzine (Atarax, Vistaril)
• Levocabastine eyedrops (Livostin)
• Levocabastine oral (Xyzal)
OTC Antihistamines include:
• Brompheniramine (Dimetane)
• Cetirizine (Zyrtec)
• Chlorpheniramine (Chlor-Trimeton)
• Clemastine (Tavist)
• Diphenhydramine (Benadryl)
• Fexofenadine (Allegra)
• Loratadine (Alavert, Claritin)
• Cetirizine (Zyrtec)
• Chlorpheniramine (Chlor-Trimeton)
• Clemastine (Tavist)
• Diphenhydramine (Benadryl)
• Fexofenadine (Allegra)
• Loratadine (Alavert, Claritin)
Eyedrops treats allergic symptoms of eyes, including itching, water eyes. Some medicines combine an antihistamine and a decongestant to reduce the congestion. Read More
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