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Antihistamines are designed to block the effects of the histamine that your body produces.
In turn, they decrease the symptoms of the allergy.
Regular use of an intranasal steroid spray may be more appropriate for patients with chronic symptoms.
Daily use of an antihistamine, decongestant, or both can be considered either instead of or in addition to nasal steroids.
No dose adaptation is necessary for elderly or renally (kidney) impaired patients. S., it is classified as category B in pregnancy, meaning animal reproduction studies have failed to demonstrate a risk to the fetus but no adequate and well-controlled studies in pregnant women have been conducted.
As a "nonsedating" antihistamine, loratadine causes less (but still significant, in some cases) sedation and psychomotor retardation than the older antihistamines because it penetrates the blood/brain barrier to a smaller extent.
Although the drug was only authorized by the FDA on , it was already available in most European countries.
Patients with intermittent symptoms are often treated adequately with oral antihistamines, decongestants, or both as needed.
Zyrtec and Claritin have very few side effects and are generally recognized as safe for most people. Zyrtec can cause sleepiness, but only in some people.
Take it for the first time when you will be at home for a few hours in case it makes you sleepy.
They both calm your immune system’s reaction to allergens. They also take effect at different times and stay effective for different durations. Antihistamines have a reputation of making you sleepy because the first types crossed into your central nervous system more easily and had a direct effect on your alertness.
These factors could determine which of these two drugs is better for you. However, newer antihistamines like Zyrtec and Claritin are less likely to cause this side effect. Most people experience at least 24 hours of relief after a single dose. People who take it may feel relief in as little as one hour.