Is allerest an antihistamine?
Considering this, can you be allergic to an antihistamine?
Antihistamines are the cornerstone of allergy therapy and are not expected to cause hypersensitivity reactions. Almost all antihistamines have been reported as causing reactions; cetirizine was the most common oral preparation followed by its parent drug, hydroxyzine.
Also, which antihistamine has the least side effects? These antihistamines are much less likely to cause drowsiness:
- Cetirizine (Zyrtec Allergy)
- Desloratadine (Clarinex)
- Fexofenadine (Allegra Allergy)
- Levocetirizine (Xyzal)
- Loratadine (Alavert, Claritin)
Also asked, what does an antihistamine do?
Antihistamines reduce or block histamines, so they stop allergy symptoms. These medicines work well to relieve symptoms of different types of allergies, including seasonal (hay fever), indoor, and food allergies. But they can't relieve every symptom. To treat nasal congestion, your doctor may recommend a decongestant.
Is Benadryl an antihistamine?
A: Benadryl (diphenhydramine) is an antihistamine; it works by blocking the effects of the naturally occurring chemical histamine in the body. Diphenhydramine is used to treat sneezing, runny nose, itching, watery eyes, hives, rashes, itching, and other symptoms of allergies and the common cold.