Kestine

Ebastine, the active ingredient in Kestine, is a second‑generation H1 antihistamine presented as an oral tablet for systemic use. It alleviates symptoms of allergic rhinitis and chronic idiopathic urticaria by blocking peripheral histamine H1 receptors in patients who experience seasonal or perennial allergies.

GNH USA supplies Kestine as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide. The company adheres to stringent quality standards and provides regulatory‑approved batches to meet global demand.

Ebastine is indicated for allergic conditions that involve histamine‑mediated inflammation. - Allergic rhinitis: relief of sneezing, nasal itching, rhinorrhea and congestion. - Seasonal allergic rhinitis: reduction of symptoms triggered by pollen or outdoor allergens. - Chronic idiopathic urticaria: decrease in hives and itching, improving patient quality of life.

Ebastine may cause adverse reactions, which are generally mild but can include serious events in rare cases.

Common Side Effects: - Headache - Dry mouth - Drowsiness - Fatigue - Nausea - Abdominal pain

Serious or Rare Side Effects: - Angioedema - Severe skin reactions (e.g., Stevens‑Johnson syndrome) - Anaphylaxis - Cardiac arrhythmia - Hepatic enzyme elevation - Blood dyscrasias

When prescribing ebastine, clinicians should consider several precautionary measures to ensure safe use. - Assess liver function: obtain baseline hepatic labs in patients with known liver disease. - Avoid use in known hypersensitivity: discontinue if rash or other allergic signs develop. - Caution in pregnancy: limited data; use only if benefit outweighs potential risk. - Monitor for sedation: advise patients not to operate machinery if drowsy. - Review concomitant CYP3A4 inhibitors: dose adjustment may be required. - Store at ambient temperature: keep in the original pack, protect from moisture.

Ebastine's plasma levels can be altered by drugs that affect CYP3A4 metabolism, requiring attention to potential interactions.

Major Interactions (Avoid): - Ketoconazole: may markedly increase ebastine concentrations. - Erythromycin: can elevate plasma levels, raising toxicity risk. - Ritonavir: strong CYP3A4 inhibition leading to significant exposure.

Moderate Interactions (Monitor Closely): - Theophylline: may increase its plasma concentration. - Other sedating antihistamines: additive drowsiness possible. - Alcohol: may enhance central nervous system depression.