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Allergies; Allergy/Allergies; Anaphylaxis | |
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An antihistamine is a drug which serves to reduce or eliminate effects mediated by histamine, an endogenous chemical mediator released during allergic reactions, through action at the histamine receptor. Only agents where the main therapeutic effect is mediated by negative modulation of histamine receptors are termed antihistamines - other agents may have antihistaminergic action but are not true antihistamines.
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An allergy is a immune malfunction whereby a person's body is hypersensitised to react immunologically to typically nonimmunogenic substances. When a person is hypersensitised these substances are known as allergens. The word allergy derives from the Greek words allos meaning "other" and ergon meaning "reaction" or "reactivity". Reactions can vary from the benign runny nose, to life-threatening anaphylactic shock and death.
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Antihistamines as related to Allergy
- Allergy Symptoms are triggered by Histamine and Treatment often ...
Almost everyone has taken an antihistamine to treat hay fever, itching, to ... These antihistamines have been marketed as allergy preparations for the relief ...
- Understanding Allergy and Hay Fever Medications
Antihistamines are most effective when taken continuously during the allergy season. ... have allergies, the time at which you take your allergy medication may ...
- Medications for Allergies
Antihistamines. Antihistamines have been used for years to treat allergy symptoms. ... Some allergy medicines contain both an antihistamine and a decongestant to ...
- Antihistamines and Intranasal Antihistamines: Allergy Medications?
Learn about antihistamines and intranasal antihistamines and whether or not they ... allergies, coming into contact with pollen, dust, or any of your allergy ...
- The Antihistamines
also get better symptom relief from a newer antihistamine, though studies ... allergies and you are taking antihistamines or other. allergy medicines regularly. ...
- Antihistamines -- familydoctor.org
Can I take my prescription antihistamine with other medicines? ... More Information. Allergies. Allergy Shots. Nasal Sprays. Return to top. Other Organizations ...
- Nasal Allergy Medications - Allergies: Allergy Symptoms, Treatment, and ...
What about combination antihistamine/decongestant preparations? Nasal Steroid Sprays ... of nasal allergies are mild or intermittent, antihistamines with or without ...
- antihistamines-oral Glossary of Terms with Definitions on MedicineNet.com
Antihistamine side effects that very occasionally occur ... Insect Sting Allergies. Allergy RSS. WebMD Resources. Natural Relief for Your Child's Allergies ...
- Drugs and Treatments - Antihistamine Allergy Oral - Patient Handout ...
Find information about (Antihistamine Allergy Oral) on WebMD including drug user ratings, drug interactions, medication ... to the effects of antihistamines. ...
- Antihistamines-preparing for allergy testing
... to discontinue antihistamines 48 hours prior to testing. The more common antihistamines are listed below. ... you may need the antihistamine and the shot both ...
- Antihistamines: Understanding Your OTC Options -- familydoctor.org
Antihistamines can help prevent and treat the symptoms of allergies, ... OTC cold and allergy products contain antihistamines, as do some prescription drugs. ...
- Allergy - Sinusitis - WS Tichenor M.D.
Allergy shots have also been shown to be helpful with cat allergies ( See below. ... Antihistamines help with most allergy symptoms, but should ideally be taken ...
- Allergy Medicines
Allergy Medicines. Antihistamines ... An antihistamine is not actually the opposite of histamine. ... prevent the inflammation of allergies is to prevent the ...
- Diseases - Frequently Asked Questions About Allergy Treatments and ...
Allergy Medications (Antihistamines, Steroids ,Other Medications for Allergies) ... Antihistamine/decongestant combinations are also effective. ...
- allergy medication
oral antihistamines. Oral antihistamines are the most commonly prescribed allergy medication. ... is an antihistamine that can relieve allergy symptoms such as: ...
- Allergy Medication - DrGreene.com
If a child has cold symptoms that go on and on, is it really allergies? ... Antihistamines reduce allergy symptoms by blocking the action of the histamine ...
- Eye Allergies - ACAAI
Do allergy shots treat eye allergies? ... manage eye allergy symptoms in conjunction with an oral antihistamine that might ... Decongestants-Antihistamines. ...
- InteliHealth:
Antihistamines. Antihistamines treat almost all allergy symptoms. ... Tavist (clemastine) is an antihistamine that lasts longer between doses but is ...
- Antihistamines and Allergic Rhinitis - Treating Allergic Rhinitis with ...
Find out which antihistamines work the best to treat hay fever, ... What Is an Antihistamine? ... Allergies on the Cheap Do it Yourself Allergy Care Exercise ...
- Allergy medications: Know your options - MayoClinic.com
Antihistamines block histamine, an inflammatory chemical ... Antihistamine eyedrops can reduce itching, redness and swelling associated with allergies. ...
- InteliHealth:

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