Ketotifen

Ketotifen, the active ingredient in Ketotifen, is an antihistamine (H1 receptor antagonist) and mast cell stabilizer presented as an oral formulation for oral use. It is employed to manage allergic conditions such as allergic rhinitis, allergic conjunctivitis, and to provide prophylaxis in asthma, primarily in patients with a history of hypersensitivity reactions.

GNH USA supplies Ketotifen as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide, ensuring quality and regulatory compliance.

Ketotifen is used to treat allergic disorders by targeting histamine‑mediated pathways.

Allergic rhinitis: reduces nasal congestion, sneezing, itching and improves airflow. Allergic conjunctivitis: alleviates eye itching, redness, tearing and swelling. Asthma prophylaxis: helps prevent bronchial hyper‑responsiveness and reduces frequency of asthma attacks.

Ketotifen may cause a range of adverse reactions, varying from mild to severe.

Common Side Effects: - Drowsiness: feeling of sleepiness or reduced alertness. - Dry mouth: decreased salivation leading to oral discomfort. - Headache: mild to moderate head pain. - Nausea: upset stomach or urge to vomit.

Serious or Rare Side Effects: - Severe skin reactions: such as Stevens‑Johnson syndrome or toxic epidermal necrolysis. - Anaphylaxis: rapid onset of allergic reaction with breathing difficulty. - Hepatic dysfunction: signs of liver injury including jaundice. - Blood dyscrasias: abnormal blood counts such as agranulocytosis.

When prescribing or dispensing Ketotifen, consider the following precautions to ensure safe use.

Assess patient history: verify no known hypersensitivity to ketotifen or related antihistamines. Monitor sedation: advise caution when operating machinery or driving, especially at therapy initiation. Evaluate hepatic function: use with care in patients with liver impairment. Consider pregnancy and lactation: weigh potential risks and benefits before use. Review concomitant CNS depressants: adjust dosing if combined with alcohol or sedatives. Store at room temperature: keep in the original container, protect from moisture and light.

Ketotifen can interact with other medicines, altering its efficacy or safety profile.

Major Interactions (Avoid): - CNS depressants (e.g., benzodiazepines, opioids): may increase sedation and impair cognition. - Alcohol: can potentiate drowsiness and decrease alertness. - Anticholinergic agents: may exacerbate dry mouth and constipation.

Moderate Interactions (Monitor Closely): - Theophylline: ketotifen may increase plasma theophylline levels, requiring monitoring. - Corticosteroids: concurrent use may affect anti‑inflammatory response. - Beta‑agonists: possible reduction in bronchodilator effectiveness.