Medications containing the generic drug loratadine are used to combat various symptoms associated with allergies and hay fever that arise from contact with certain airborne substances, such as dust and pollen. The drug is also taken sometimes to relieve symptoms of hives, which include itching and redness. This drug is available over the counter in many regions of the world, and in some areas, it is the only over the counter drug which is specifically useful for hay fever, making it a very popular product.
Forms
Initially, the drug was available by prescription only. Loratadine comes in the forms of tablet, syrup and quickly disintegrating. The last version is a tablet that dissolves quickly when placed in the mouth on the tongue. Brand name versions of loratadine include Alavert and Claritin, both of which are available in several formulations for different users (for example, Claritin RediTabs for adults and fruit-flavored Claritin syrup for children) and in different strengths (for instance, 24-hour versus 12-hour) and drug combinations (for instance, Alavert with loratadine only and Alavert Allergy & Sinus with loratadine and the decongestant pseudoephedrine sulfate).
Function
The drug is a part of the category of antihistamines. Such medications prevent the biological substance called histamine from functioning normally and producing symptoms witnessed in allergies. The symptoms that histamines cause include itchy eyes, an itchy or runny nose and sneezing.
Side Effects
Common side effects include drowsiness, dizziness, and dry mouth. Patients can also develop blurred vision, gastrointestinal problems, confusion, depression, arrhythmias, and convulsions, although these side effects are more rare. Loratadine(CAS number:79794-75-5) can interfere with allergy testing, and patients may be asked to abstain from using the drug for a week before an allergy testing session so that the results will not be skewed.
Considerations
What need to be metioned is that this medication cannot prevent serious allergic reactions such as anaphylactic shock. Certain medications can cross-react with loratadine. For this reason, it is a good idea to discuss the drug with a primary care provider or pharmacist, and to disclose all medications and drugs which are being used, so that the doctor can confirm that loratadine will be safe for use. Since loratadine may cause drowsiness, users should remain cautious when performing activities that require remaining alert, such as driving.
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