Loratadine can also be used to relieve the symptoms of a condition called chronic idiopathic urticaria.
This is a chronic itchy rash, similar to nettle rash, but with no apparent cause.
When the body reacts to a foreign substance (known as an allergen, eg flower pollen), the mast cells stimulated by the allergen release their stores of histamine.
The released histamine then binds to its receptors (H1 receptors), causing a chain reaction that results in allergic symptoms.
3- Ongoing itchy rash with no known cause (chronic idiopathic urticaria).
If you are due to have any skin prick tests to diagnose allergies you should stop taking your antihistamines at least 48 hours before the tests.
Central and Peripheral Nervous System: blepharospasm, dizziness, dysphonia, hypertonia, migraine, paresthesia, tremor, vertigo.
Gastrointestinal System: altered taste, anorexia, constipation, diarrhea, dyspepsia, flatulence, gastritis, hiccup, increased appetite, loose stools, nausea, vomiting. Psychiatric: agitation, amnesia, anxiety, confusion, decreased libido, depression, impaired concentration, insomnia, irritability, paroniria.Adverse events occurring with a frequency of ≥_ 2% in loratadine syrup-treated patients (6 to 12 years old) are: Nervousness, wheezing, fatigue, hyperkinesia , abdominal pain, conjunctivitis, dysphonia, malaise, upper respiratory tract infection In pediatric patients 2 to 5 years of age received 5 mg loratadine once daily for a period of 14 days.No unexpected adverse events were seen given the known safety profile of loratadine and likely adverse reactions for this patient population.Blocking the actions of histamine relieves the itching and reduces the rash associated with this condition.Loratadine is called a non-sedating antihistamine as it does not enter the brain in significant amounts, and is therefore unlikely to cause drowsiness. 2- Hayfever that occurs throughout the year due to allergies, eg pets, dust mites (perennial allergic rhinitis).The following are some of the side effects that are known to be associated with Clarityn.