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Home > Drug Category > Allergy Medication > Clarinex and Equivalent

Clarinex Information

Clarinex (Desloratadine/Aerius) is used to treat allergic conditions, including allergic rhinitis, a seasonal or year round allergic condition where your nose gets irritated by something you're allergic to, like pollen or dust mites, leading to symptoms such as sneezing, runny nose, and nose itching. Clarinex is also used to treat acute or chronic urticaria, a skin condition where itchy, raised, red welts (wheals) appear on the skin, occuring in response to an allergy or even without any known cause. It is used to relieve allergy symptoms, such as hives, body itching, sneezing, a runny nose, allergic cough and other symptoms associated with these allergic conditions. Its active ingredient, desloratadine, belongs to the class of drugs known as second-generation antihistamines. Being an antihistamine, it works by blocking the action of histamine, a substance in the body that plays a key role in these allergic conditions. By blocking histamine receptors, desloratadine helps alleviate allergic conditions and related symptoms. Also, unlike some other antihistamines, it rarely crosses the blood-brain barrier, making it less likely to cause drowsiness.

Clarinex Side Effects

Like all medications, desloratadine has a range of potential side effects. Common mild side effects include: dry mouth, nose, or throat, fatigue, headache and increased appetite.

Stop using this medicine and contact your doctor immediately if you experience any serious side effects, including the following:
• Allergic reaction, such as hives, swelling of the face, lips, or throat;
• Abnormal heartbeat including fast and pounding heartbeat;
• Fever;
• Restlessness;
• Seizures;
• Symptoms of liver problems (e.g., nausea, vomiting, and yellow eyes);
• Urinating difficulties, including painful and frequent urination

Also, inform your doctor about any other side effects you notice that are not listed here.

Clarinex Precautions

Do not use this oral medication if you are allergic to desloratadine, or any other ingredients in Clarinex. Before you start taking this medication, ensure that you inform your doctor about any prior or current medical conditions, including the following:
• Kidney disease;
• Liver disease;
• Seizure disorders

While desloratadine is unlikely to cause drowsiness or reduce alertness, it is advised to avoid driving, operating machinery, or performing other potentially hazardous tasks until you have determined how you are affected by this medication. Consult your doctor before using this medicine during pregnancy or while breastfeeding. This medication should not be used in children under 6 months of age. Clarinex should be used with caution in young children as they may be more sensitive to its side effects. Desloratadine may interact with other drugs or substances such as alcohol, cimetidine, fluoxetine, opioids, thalidomide, and tepotinib. Therefore, inform your healthcare provider about all the medications, including herbal medicines and supplements, that you are taking before starting Clarinex to prevent drug interactions. This medication is available in two different formulations: tablets and syrup, both for oral use. Your doctor will determine the appropriate formulation and dose for you, taking into account various factors, including your age, medical condition, and response to treatment. Refer to the leaflet included in the medication pack for additional usage details specific to the prescribed formulation. Take this medication regularly as prescribed for optimal effectiveness. Store this medication at room temperature, protect it from moisture, and keep it out of the reach of children.

Do I need a prescription to order Clarinex?

Yes, a prescription is required from your physician to order Clarinex.