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Quick summary

Type of medicine

Over-the-Counter Antihistamine

Works by

Blocking histamine, a natural substance that causes allergy symptoms

Active Ingredient

Loratadine (10mg per tablet)

Effective within

Usually within 1-3 hours, but may vary between individuals



Side effects

Mild drowsiness (rare), dry mouth, headache, gastrointestinal discomfort (rare)

Medication details


Clarityne 30 Tablets, also known by its generic name Loratadine, is a widely used over-the-counter antihistamine medication. This comprehensive guide is intended to provide essential information about Clarityne 30 Tablets, offering valuable insights into its usage, benefits, and potential side effects. It's important to note that this guide does not replace professional medical advice. Always consult a healthcare provider or pharmacist for personalized recommendations related to your specific condition.


Proper usage of Clarityne 30 Tablets is vital for achieving the best results and effectively managing allergy symptoms. Follow these directions for optimal administration:
Dosage: Take one Clarityne 30 Tablet (10mg Loratadine) with a full glass of water.
Timing: Clarityne is typically taken once a day, with or without food. It's recommended to take it at the same time each day to establish a routine.
Duration: Use Clarityne for the prescribed period or as recommended by your healthcare provider or pharmacist. Do not exceed the recommended dose.
Response Time: Loratadine generally begins working within 1-3 hours after ingestion. You may not notice immediate relief; it often takes consistent use for full effectiveness.
Consultation: If you are taking Clarityne for a child, ensure that the dosage is appropriate for their age and weight. Always consult a healthcare provider for pediatric dosing.


Clarityne 30 Tablets contain the active ingredient Loratadine, an antihistamine. Loratadine works by blocking the action of histamine, a natural substance produced by the body during allergic reactions. This helps reduce allergy symptoms like sneezing, runny nose, itching, and watery eyes.
Inactive ingredients may vary between generic and brand-name versions and can include items such as lactose, microcrystalline cellulose, and magnesium stearate. Consult the product label for specific details regarding inactive ingredients and any potential allergens.

Side Effects

Clarityne 30 Tablets are generally well-tolerated, but like any medication, they may cause side effects in some individuals. Common side effects can include:
Drowsiness: One of the advantages of Loratadine is its low potential for causing drowsiness. However, some individuals may experience mild drowsiness, which is usually less pronounced than with older antihistamines.
Dry Mouth: Loratadine can sometimes lead to a dry mouth. Staying well-hydrated and using sugar-free lozenges or gum may help alleviate this symptom.
Gastrointestinal Distress: Mild stomach discomfort or digestive issues, like nausea or gastritis, may occur in rare cases.
Headache: Some individuals may experience mild headaches as a side effect of Clarityne.
Allergic Reactions: While rare, severe allergic reactions can occur. Seek immediate medical attention if you notice symptoms like rash, itching, swelling, severe dizziness, or difficulty breathing.
Interactions: Clarityne may interact with other medications or medical conditions. It's important to inform your healthcare provider or pharmacist of all medications you are taking, including over-the-counter and prescription drugs.


Before using Clarityne 30 Tablets, consider the following warnings and precautions:
Alcohol and Sedation: Although Clarityne is considered non-sedating, it may interact with alcohol, leading to increased drowsiness. It's advisable to limit alcohol consumption while taking this medication.
Pregnancy and Nursing: If you are pregnant or breastfeeding, consult a healthcare provider before using Clarityne. They can help you weigh the potential benefits and risks.
Liver or Kidney Impairment: Individuals with severe liver or kidney impairment may require dosage adjustments or an alternative medication. Discuss your condition with a healthcare provider.
Allergies: Inform your healthcare provider or pharmacist of any known allergies to Loratadine or similar antihistamines.
Driving and Operating Machinery: Although Clarityne is less likely to cause drowsiness compared to older antihistamines, some individuals may still experience drowsiness. If you are affected, avoid activities that require mental alertness, such as driving or operating heavy machinery.
Pediatric Use: Clarityne is available in various forms suitable for children, but pediatric dosing is age and weight-dependent. Always consult a healthcare provider for children's dosing.

Medically reviewed and published

  • This page was medically reviewed by Dr Sohaib Imtiaz, Clinical Lead on

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Please read our FAQs page to find out more.

Can I use Clarityne 30 Tablets to relieve cold symptoms?

No, Clarityne 30 Tablets, with the active ingredient Loratadine, are specifically designed to alleviate allergy symptoms, such as sneezing, runny nose, and itchy or watery eyes. They are not intended for treating cold symptoms. Consider a cold-specific remedy if you have a cold.

Can I take Clarityne 30 Tablets along with other allergy medications?

It's generally not advisable to combine multiple allergy medications without consulting a healthcare provider. Combining them may increase the risk of side effects and drug interactions. If your current allergy medication isn't effective, consult a healthcare provider for personalized recommendations.

Are there any dietary restrictions while using Clarityne 30 Tablets?

There are no specific dietary restrictions associated with Clarityne 30 Tablets. However, maintaining a balanced diet and staying well-hydrated can help support overall health and may complement the effectiveness of the medication.

Can I give Clarityne 30 Tablets to my child who is experiencing allergy symptoms?

Yes, Clarityne offers pediatric formulations suitable for children. However, the dosage should be determined by your child's age and weight, and it's important to consult a healthcare provider for specific pediatric dosing recommendations.

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