Loratadine - Use | Dosage | Side Effects

This article was medically reviewed by M.Pharm, Marko Tanaskovic on August 12, 2018. To read more about an author, click here.

Loratadine belongs to the group of medicines called antihistamines. When there is allergic reaction body release a variety of substances (mediators). One of the most important mediators of allergy is histamine. Antihistamines prevent the action of histamine, thus helping to alleviate allergic symptoms. Loratadine after oral administration is rapidly absorbed from the gastrointestinal tract and relieves allergy symptoms, making it easier for difficulties in connection with:

  • allergic rhinitis, such as sneezing, stuffy nose, runny nose, itching and redness nose and eyes, a burning sensation and tearing of the eyes,
  • urticaria (allergic skin reaction) such as redness and itching of the skin, and skin rash.

The resulting symptomatic relief lasts throughout the day and helps you in performing daily activities and at bedtime.

Do not use this medicine

  • If you are allergic (hypersensitive) to loratadine and / or any of the excipients.

Be careful with this medicine

Before applying Loratadine, be sure to consult with your doctor or pharmacist if you have a damaged liver function (liver disease). Application of Loratadine must be discontinued at least 48 hours (2 days) before performing skin tests to prove allergic disease, since antihistamines may prevent or diminish otherwise positive reactions to the indicators of skin sensitization.

Interactions (The usage of other medicines)

Please note that this information may relate to the medicines that you no longer apply, and the medicines that you are planning to apply in the future. Tell your doctor if you are taking or have recently applied any other medicines, including medicines obtained without a prescription. When Loratadine is mixed with ketoconazole, erythromycin or cimetidine, the plasma concentrations of loratadine may increase, but it does not cause clinically significant changes.

Taking Loratadine with food and liquid

Loratadine can be applied regardless of the meal. It does not enhance the effects of alcohol.

Medicines use during pregnancy and breastfeeding

Before you start to apply some medicine, consult your doctor or pharmacist.


It is not recommended to use Loratadine during pregnancy.


Loratadine is excreted in breast milk. It is also not recommended Loratadine use during lactation.

The effect of this medicine on the management of motor vehicles and machinery operation

When it is used in recommended doses, this medicine should not cause drowsiness. However, in very rare cases, some patients can still feel drowsiness and this may affect their ability to drive and / or operate machinery. You need to be careful during the first administration of the medicine.

Medicines use

If you feel that the medicine is too strong or too weak, talk to your doctor or pharmacist. Always take medication exactly as recommended by your doctor. If you are unsure or have any concerns regarding the application of the medicine, ask your doctor or pharmacist for advice.

Method of application

Loratadine is administered orally. It may be used independently of a meal.


If you apply more than the prescribed dose is, consult your doctor or pharmacist! You should not expect serious problems with accidental overdose. If you apply more Loratadine than it is recommended, contact immediately your doctor or pharmacist for help. In overdoses can occur somnolence, tachycardia, and headache.

If you forget to take the medicine

If you forget to take medication, do not use twice the amount of the medicine later. You need to continue with medicine use according to the usual schedule. If you missed your dose, please do so as soon as possible. After that, continue with the use of this product according to the usual schedule and suitably. Do not use a double dose of the medicine at once, to make up the missed dose.

If you stop taking this medicine

Abrupt cessation of this medicine administration, should not have a negative impact on your health. If you have any further questions on the use of the medicine Loratadine, contact your doctor or pharmacist.

Side effects

Medicine Loratadine is generally well tolerated. Side effects are rare. The most commonly reported side effects in children aged 2 to 12 years old include headache, irritability and fatigue. The most commonly reported side effects in adults and adolescents include drowsiness, headache, increased appetite, and difficulty sleeping. After placing the medicinal product, very rarely reported cases of severe allergic reaction (difficulty breathing, wheezing, itching, hives and swelling), dizziness, irregular or rapid heartbeat, nausea, dry mouth, stomach problems, liver disorders, loss of hair, skin rash and fatigue. If any of the side effects gets serious, or you notice any side effects not listed here, please tell your doctor or pharmacist. This medicine is also known as: Alavert, Alavert Allergy, Claritin, Claritin 24 Hour Allergy, Claritin Hives Relief, Claritin Liqui-Gels, Claritin Reditab, Clear-Atadine, Clear-Atadine Children's, Dimetapp ND, Loratadine Reditab, ohm Allergy Relief, Tavist ND, Wal-itin For more information about medicine Loratadine visit Wikipedia:

Information on this website are provided for educational purposes only and are not intended for medical advice, diagnosis or treatment.

If you have any concerns or questions about your health, you should always consult with a physician or other health-care professional.

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