Once-A-Day Hayfever & Allergy (Loratadine)

Loratadine, the active ingredient in Once-A-Day Hayfever & Allergy, is an antihistamine presented as an oral tablet for oral use. It reduces symptoms of allergic rhinitis, hay fever and urticaria in both adults and children, and is available over‑the‑counter in the European Union.

GNH USA supplies Once-A-Day Hayfever & Allergy as a licensed, GDP‑compliant international pharmaceutical supplier serving pharmacies, hospitals and clinics worldwide, ensuring consistent quality and regulatory compliance across markets.

Loratadine is an antihistamine used to manage allergic conditions affecting the nasal passages and skin.

Allergic rhinitis: alleviates sneezing, nasal congestion, itching and runny nose. Hay fever: reduces seasonal allergy symptoms such as watery eyes and nasal discharge. Urticaria: relieves itching and the formation of hives.

Loratadine may cause adverse reactions, which are generally mild but can be serious in rare cases.

Common Side Effects: - Headache - Dry mouth - Fatigue - Nausea

Serious or Rare Side Effects: - Anaphylaxis (severe allergic reaction) - Stevens‑Johnson syndrome or other severe skin reactions - Hepatotoxicity (liver injury) - Cardiac arrhythmias or other serious heart disturbances

Before using loratadine, consider the following precautions:

Pregnancy: consult a healthcare provider before use. Breastfeeding: use only if the benefit outweighs potential risk to the infant. Renal impairment: dose adjustment may be required in severe cases. Drug interactions: review all concomitant medications for possible interactions. Store at below 25°C: keep in the original packaging, protect from moisture and direct sunlight.

Loratadine can interact with several medicines; awareness of the interaction level helps manage risk.

Major Interactions (Avoid): - Erythromycin: may increase loratadine plasma concentrations. - Ketoconazole: may elevate loratadine levels. - Ritonavir: can raise exposure to loratadine. - Other azole antifungals: may increase loratadine concentrations.

Moderate Interactions (Monitor Closely): - Theophylline: may reduce loratadine effectiveness. - Alcohol: may enhance drowsiness. - Concurrent antihistamines: may cause additive sedation.