Hayfever & Allergy Relief (Cetirizine Dihydrochloride)

Hayfever & Allergy Relief is indicated for the temporary relief of symptoms associated with allergic conditions. It is commonly used to manage nasal and skin manifestations of allergy.

• Seasonal allergic rhinitis (hay fever) with sneezing, runny nose, and itchy eyes.
• Perennial allergic rhinitis caused by indoor allergens such as dust mites or pet dander.
• Acute urticaria (hives) presenting with itchy, raised skin welts.
• Relief of itching and swelling associated with mild allergic skin reactions.
• Adjunctive therapy for allergic conjunctivitis when eye symptoms are present.

Like other antihistamines, cetirizine may cause side effects, most of which are mild and transient. Most users experience only mild, transient symptoms, whereas a small proportion may develop reactions that need prompt medical evaluation. Understanding the typical and rare side effects helps patients use the product safely.

Common

• Drowsiness or mild fatigue, which may affect activities requiring alertness.
• Dry mouth, often relieved by increased fluid intake.
• Headache, typically mild and transient.

Serious

• Severe skin rash or hives, suggesting a possible allergic reaction.
• Swelling of the face, lips, tongue, or throat, which may impair breathing.
• Difficulty breathing or shortness of breath, requiring immediate medical attention.

Before taking Hayfever & Allergy Relief, consider key precautions to promote safe use. Individuals with certain health conditions, age groups, or who are pregnant or nursing should seek professional advice.

• Use caution with severe liver or kidney disease.
• Avoid if you are allergic to cetirizine or similar antihistamines.
• Do not mix with alcohol or other CNS depressants.
• Keep out of reach of children; accidental ingestion can be serious.
• Consult a doctor before combining with other allergy or cold drugs.
• Stop use and get medical help if an allergic reaction occurs.

Cetirizine may interact with certain substances, altering its effectiveness or increasing the risk of adverse effects. The following guidance outlines combinations to avoid and those that may require careful monitoring.

Avoid

• Alcohol, because it can increase drowsiness and impair mental alertness.
• Other antihistamines, which may heighten sedation, anticholinergic effects, or other side effects.
• Monoamine oxidase inhibitors (MAOIs), due to potential additive central nervous system depression.

Use with caution

• Sedating medications such as benzodiazepines or sleep aids, which may compound drowsiness.
• Theophylline, as cetirizine may affect its metabolism and alter plasma levels.
• Certain antidepressants (e.g., tricyclics), which could increase anticholinergic burden and cardiac effects.