Montelukast is a Leukotriene receptor antagonists.(is used for maintenance treatment of asthma and to relive symptoms of seasonal allergies) It is a selective and orally active leukotrien antagonist that inhibits the cysteinyl leukotrien CysLT1 receptor.
Levocetirizine is a third — generation non — sedative antihistamine.(is prevents the release of other allergy chemicals and increased blood supply to the area, and provides relief from the typical symptoms of hay fever). Levocetirizine, the R — entaiomer of Cetirizine, is a potent and selective antagonist of peripheral H1 — receptors.
It has been demonstrated by recent studies concomitant administration of an antileukotrien (montelukast) and an antihistamine (levocetirizine), shows significantly better symptoms relief compared with the modest improvement of rhinitis symptomatology with each of the treatments alone.
Montelukast : Add — on therapy for the treatment of patients, 6 years old or older, with mild to moderate asthma in adequately controlled on ‘as required’ short — acting β — agonist and inhaled corticosteroids. Monteluakst may offer an alternative to Theophylline as add — on therapy is asthma poorly controlled by short acting β — agonist and inhaled corticosteroids.
Levocetirizine : skin allergy like food and drug allergy or atopic dermatitis, chronic idiopathic urticaria.
Indications and Usage :
Drug Interaction : BEFORE TAKING THIS MEDICINE TELL THE DOCTOR ABOUT ANY MEDICAL PROBLEMS AN ALLERGIES THAT CHILD HAS NOW OR HAS HAD.
Some medicines may affect how patient’s works, or other medicine work. If anyone is taking or has recently taken other medicines, including those obtained without a prescription.
Such as :
Phenobarbital : Used for treatment of epilepsy
Pheytoin : Used for treatment of epilepsy
Rifampicin : Used for treatment of Tuberculosis and some other interactions.
THEOPHYLLINE, PREDISOLONE, ORAL CONTRACEPTIVES, TERFENADINE, DIGOXIN, WARAFIN, THYROID HORMONES & SEDATIVE HYPNOTICS.
Adverse Effects : Thirst was the only adverse experience commonly reported as drug related in 2 — 5 yr olds.
Cough was reported as frequently (>1/10) occurring in trials regardless of causalty.In older (6 — 14 yr), headache was the most commonly reported drug — related adverse — effect. The most commonly reported adverse reactions were headache, asthma and upper respiratory tract infections; however none were significantly different in frequency between the groups.
Contraindications : Hypersensitivity, pregnant patients, patients with blood and lymphatic system disorder and psychiatric disorder.
Conclusion : From the above discussion, it can be concluded that this medicine could improve the quality of life of children with allergic rhinitis as well as asthma in addition to being efficacious as immunotherapy in seasonal allergic rhinitis in children aged 2-5 years.
Moreover it has a considerable safety profile, with persistent results.
Oral doses of this medicine has shown efficacy as a preventive treatment for asthma during clinical trials in children aged 2 — 14 years.
This combination offers as effective, well tolerated and convient treatment option for children with asthma and allergies.