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Side effects of Zyrtec. Zyrtec is a widely available medication that can work quickly. “In the average patient, ... Side effects of Claritin. Drug interactions are not usually a problem.
Loratadine, sold under the brand name Claritin among others, is a medication used to treat allergies. [5] This includes allergic rhinitis (hay fever) and hives. [5] It is also available in drug combinations such as loratadine/pseudoephedrine, in which it is combined with pseudoephedrine, a nasal decongestant. [5]
Effects generally begin within thirty minutes and last for about a day. [6] The degree of benefit is similar to other antihistamines such as diphenhydramine, which is a first-generation antihistamine. [6] Common side effects include sleepiness, dry mouth, headache, and abdominal pain. [6]
Antihistamines are drugs which treat allergic rhinitis, common cold, influenza, and other allergies. [1] Typically, people take antihistamines as an inexpensive, generic (not patented) drug that can be bought without a prescription and provides relief from nasal congestion, sneezing, or hives caused by pollen, dust mites, or animal allergy with few side effects. [1]
The most common adverse effect is sedation; this "side-effect" is utilized in many OTC sleeping-aid preparations. Other common adverse effects in first-generation H 1 -antihistamines include dizziness, tinnitus , blurred vision, euphoria , incoordination, anxiety , increased appetite leading to weight gain , insomnia , tremor, nausea and ...
Common side effects for oral decongestants include insomnia, hypertension (elevated blood pressure), and difficulty in urination. [12] Avoid use during pregnancy as it may cause vasoconstriction of uterine arteries thus reducing fetal blood supply. [14] Zyrtec-D, an example of combination therapy. Combination therapy with antihistamines
[medical citation needed] It produces a decongestant effect that is facilitated by the vasoconstriction in the mucosal capillaries of the upper respiratory areas. [medical citation needed] Loratadine is a long-acting antihistamine (H 1 histamine antagonist) that is less sedating than older substances of its type. [medical citation needed]
An H 3 receptor antagonist is a type of antihistaminic drug used to block the action of histamine at H 3 receptors.. Unlike the H 1 and H 2 receptors which have primarily peripheral actions, but cause sedation if they are blocked in the brain, H 3 receptors are primarily found in the brain and are inhibitory autoreceptors located on histaminergic nerve terminals, which modulate the release of ...