Singulair is a medicine for patients with bronchial asthma. Its active ingredient is montelukast. This feature of the drug causes dilation of the bronchial tubes. This effect is achieved by the impact on the receptors that respond to cysteine leukotrienes. Thus, treatment with Singular prevents spasms of the respiratory system. The standard dose of the drug allows you to expand the bronchi for two hours. This drug can be used together with other drugs that relieve bronchospasm (use other mechanisms for relaxation of spastic bronchi) and inflammation, for example, beta-2-agonists and corticosteroids.

Singulair is prescribed in case of:

  • Treatment and prevention of bronchial asthma, caused by aspirin and physical tension, patients over the age of six years
  • Treatment of allergic rhinitis in patients older than six years

Singulair is released in pill form. “Adult dose” 10 mg – is in the tablet with a hard shell. Children and adolescents from six to fourteen years should take the chewable pills with a dosage of 5 mg once a day. The use of this medication does not depend on time of meals. Patients with asthma should take the drug in the evening. Patients with allergic rhinitis can drink this pill at any time of the day. Treatment should continue in the period of exacerbation and in the period when the patient controls their condition.

Singulair is contraindicated in case of the treatment of children of preschool age; intolerance to the components.

The effects of the drug on the development of the pregnancy have not been investigated specifically. But there were registered several cases of development of defects of the fetus. However, it was impossible to establish that this very drug had an adverse effect on the health of the child, but not other asthma medications that the mother had taken. In addition, the active ingredient of the drug is excreted in breast milk.

Therefore, the use of Singulair during pregnancy and lactation is possible only with the necessities of life.

Side effects and overdose

Before the registration of the drug there was conducted a detailed study of its adverse effects. In this course there were revealed two side effects – abdominal pain, and headache. These symptoms are rarely met. During the period sales of the drug there was collected information about the following unwanted conditions that can be associated with the use of Singular.

  • The tendency to develop bleeding, bruising
  • Respiratory tract infections
  • Aggressiveness, depression, sleep disorders, disorders of concentration, suicidal behaviour
  • Numbness, dizziness
  • Tachycardia
  • Disorders of the digestive system
  • Muscle pain, weakness, cramps
  • Anaphylactic reaction, urticaria, allergic edemas

However, don’t be afraid of such a detailed list of possible violations. First, it shows how responsible manufacturers to their product are, how thoroughly they collect and analyze information about its use. In general, side effects of Singular are rare and usually do not require discontinuation of therapy.

Data on possible symptoms of Singular overdose were received in the post marketing period (the time after the release of the drug on the market). When using extremely high doses of medication there was thirst, nausea, restlessness, headaches, abdominal pain. Treatment is symptomatic.