Loratadine

What is Loratadine?

Loratadine is an antihistamine medicine that treats the symptoms caused by hay fever or an allergic reaction. 

How does Loratadine work?

Loratadine works by blocking the production of histamine within the body. When you come into contact with something you are allergic to, like pollen, dust or pet hair, histamine is produced by cells in your body. Histamine causes symptoms like a runny nose, itchy eyes, sneezing or rashes. An antihistamine stops histamine from being released to ease or prevent these symptoms.

How to take Loratadine?

You should only take Loratadine when you come into contact with an allergen, or if you expect to, for example during the high pollen season. Take Loratadine once a day during these periods in either tablet or liquid form. If you are taking tablets, these should be swallowed whole with a drink of water or juice. Do not crush or chew the tablets. The ‘melt in the mouth’ tablet dissolves on the tongue without needing a drink. Take care not to crush the tablets as you pop them out of their packaging.

Can I take Loratadine with other hay fever treatments?

You can take Loratadine with other hay fever treatments such as nasal sprays and eye drops. Do not take more than one type of antihistamine unless your doctor has advised you to do so.

How can I cope with Loratadine side effects?

Loratadine is a non-drowsy antihistamine, but it can cause drowsiness in some people. If you experience drowsiness, you may wish to try a different non-drowsy medicine. Ask your doctor for a suitable alternative. Try drinking water and take painkillers if you get headaches. If feelings of tiredness or nervousness persist, then let your doctor know.

Will it affect my contraception?

Loratadine does not affect any method of contraception.

Loratadine side effects

Common side effects include: 

• Headaches
• Insomnia
• Drowsiness
• Increased appetite 

In children under 12 years old: 

• Feeling tired
• Nervousness
• Headaches 

Less common side effects include: 

• Dizziness 
• Faster or irregular heartbeat 
• Convulsions (seizures)
• Dry mouth
• Nausea 
• Tiredness 
• Stomach problems 
• Hair loss
• Liver problems 
• Weight gain

Signs of an allergic reaction include:

• Difficulty breathing 
• Wheezing 
• Swelling in the face, lips, tongue or throat
• Itching
• Shock or collapse 

If this happens, seek immediate medical attention.

Contraindications

Loratadine should not be taken by children under two years old or if you are allergic to any of the ingredients within the medicine. 

Consult your doctor if: 

• You have liver problems 
• The medicine is for a child with kidney problems 
• You are scheduled to have a skin test 

Drug interactions

Loratadine may interact with other medicines. Inform your doctor of any additional medicines you are taking to ensure that the combination is safe.

Loratadine and alcohol

Drinking alcohol while you are taking Loratadine is not recommended as it can make you feel sleepy. 

Loratadine and driving

You should avoid driving until you know how Loratadine will affect you. If you experience drowsiness after taking Loratadine, then do not drive until you feel better.

Can Loratadine be used for other allergies?

Loratadine can be used for allergic conjunctivitis, eczema, hives, insect bites, stings, and food allergies alongside treating hay fever.

Can I take Loratadine with pain killers?

You can take Loratadine with painkillers, however, please discuss their suitability for you with a pharmacist before you take them together.

Active ingredients

Loratadine is the active ingredient, which comes as either a 5mg or 10mg dose. 

Inactive ingredients

The inactive ingredients in Loratadine are lactose monohydrate, microcrystalline cellulose (E460), maise starch and magnesium stearate.

Please note: Different generic brands of Loratadine could contain different inactive ingredients than those stated above. Please refer to the information leaflet provided

Which ingredients can cause an allergic reaction?

While it is possible to be allergic to Loratadine, it is rare. You should seek emergency medical attention if you notice: a rash, wheezing, dizziness, difficulty breathing and swelling of the face. This warrants emergency medical attention right away, so please get medical attention right away. If you have previously had an allergic reaction from loratadine, you should let your prescribing doctor know and refrain from taking this medication again.