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- Antihistamines only works if taken before contact with the allergen
- Sometimes the reaction is so severe or life threatening, additional administration of epinephrine is required
- Sometimes prescribed for motion sickness
- Uses: Allergy symptoms, hay fever, rhinitis, hives, insect bites, poison ivy
- Some over-the-counter options: Benadryl, Claritin, Sudafed
- Some prescription options: Allegra (Fexofenadine), Clarinex
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Antihistamines can be either an over-the-counter or prescription medicine that are used to prevent symptoms of allergies, including allergic rhinitis, hay fever and hives. Antihistamines come in tablet, syrup, liquid, capsule, injection and suppository form.
How They Work
Antihistamines work by stopping the effects of histamine, which is produced by the body when a person has an allergic reaction. Histamine is what causes the itching, sneezing, runny nose, and watery eyes when you have an allergic to something.Side Effects
- Drowsiness
- Dry mouth, nose or throat
- Stomach pain
- Nausea
- Headache
- Increased appetite
- Thickening of mucus
Disclaimer
The content in this page is not a substitute for professional medical advice. Please contact your doctor before taking Antihistamine.-
Antihistamine Questions
Allergies are killing me - Benadryl's not working - any suggestions as to what other antihistamines to try? 2 AnswersMy daughter has gotten a lot of relief from Zyrtec. Buy the generic version...you will save a fortune. read more
What can I do to help inner ear pain? I took antihistamines and motrin. Does not hurt all time, sharp pain sometimes. 1 Answerif the pain is due to an ear infection or a sickness entering your body through your ears, try laying on your side and pouring hydrogen peroxide in your ear. if... read more
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Antihistamine Holistic Alternatives
- Daily-News Health: Alternative Medicine - A Plant Alternative to Antihistamines (September 1, 2005)
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