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4RX Store > Medication List > Asthma drugs > Order Singulair online

Asthma Medication (Singulair)

Generic name:
Brand name:
Singulair is one of the brands under which a bronchodilator Montelukast is sold. The formulation is an addition to the first-line asthma therapy that helps to prevent bronchospasms and acute asthma attacks caused by sports, allergens, cold air, and other triggers. The pills by 10 mg can be used by adults and children older than fifteen years. Kids older than 6 years and younger than 15 years are prescribed chewable pills with lower dosage per pill. The formulation is prohibited for pregnant and breastfeeding women. Find out about other contraindications for use, adverse reactions, and other useful info from the complete guide.
Bronchial asthma, Prevention of asthma attacks, Prophylaxis of asthma attacks during sports
The formulation helps alleviating the asthma manifestations when the first-line therapy is not enough
Montair, Romilast
Singulair (Generic Montelukast)
Actual product may differ in
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  Generic Medication guide:

What is the medication sold as Singulair?

Singulair is the brand of the transnational pharmaceutical company Merck. Under this brand the active agent Montelukast is marketed. This agent is a bronchodilator that selectively blocks leukotriene receptors, the most potent mediators of chronic persistent inflammation that causes bronchi hyperactivity in bronchial asthma.

The medication diminishes the intensity of a bronchospasm caused by the spasm of smooth muscles of the bronchioles and vessels, lowers the swelling and migration of macrophages, reduces mucus secretion and facilitates spitting out. It is very effective when taken orally. The effect develops within one day and is maintained within an extended time.

The exclusive agent for the medication formula use had expired in 2012 and since then it is also available in a form of generic. Many people prefer generics over the branded medication because of the same compound and effect but the lower price. At our med store, we offer you to buy generic Singulair made by the reputable generics-makers at the most attractive prices.

When is the formulation used?

The tablets are prescribed for bronchial asthma in the presence of certain conditions:
- As an additional therapy in individuals with persistent asthma of mild to average severity if it is not sufficiently controlled by the inhaled glucocorticoids as well as in the insufficient control over the disease with short-acting beta-agonists.
- As an alternative choice over low doses of inhaled corticosteroids in individuals with persistent asthma who hadn’t had severe episodes of asthma that require the use of corticosteroids or in individuals who are intolerant to glucocorticoids.
- As a prophylaxis of a bronchospasm before doing sports.

People who want to buy Singulair without Rx should know that for the same conditions other medications also can be used. To know what therapy is optimal for them, they must consult a specialist and make sure he or she knows their complete medical history.

Short drug info
Trade names Singulair
Pregnancy category AU: B1
US: B (No risk in non-human studies)
Routes of administration Oral
Legal status
Legal status AU: S4 (Prescription only)
CA: Rx-only
UK: POM (Prescription only)
US: Rx-only
Pharmacokinetic data
Bioavailability 63-73%
Protein binding 99%
Metabolism Hepatic (CYP2C8-major, CYP3A4 and CYP2C9-minor)
Elimination half-life 2.7-5.5 hours
Excretion Biliary

Adverse reactions that occurred in more than 1% of patients

Adverse Reactions
Singulair 10 mg/day (%)
Placebo (%)
Pain, abdominal
Pain, dental
Gastroenteritis, infectious
Congestion, nasal
ALT increased
AST increased

Singulair prohibitions for use

The tablets must not be used:
- If an individual shows signs of intolerance to their components such as allergic reactions, paradoxical bronchospasm, and so on.
- During pregnancy and lactation as it penetrates into the placenta and breast milk and can influence the baby’s development.
- In children aged less than 15 years.

Singulair dosing instructions

The recommended dosage for the individuals over fifteen years is one 10 mg pill once a day taken in before bedtime. To cope with allergic rhinitis, the time of the pills intake is chosen individually.
Children aged less than 15 years are given chewable pills with the lower dosage.
The effect of the medication is developed within one day. The tablets can b taken with or without food as it doesn’t influence the time for action onset and effectiveness of the pills. It is encouraged to use the tablets even if the symptoms of asthma are minimized and in the aggravation of the condition.
It is not recommended to combine the use of the pills with other medicines that have Montelukast in their composition.
The use of the medication cannot be abruptly switched to the inhaled corticosteroids.

Special patients groups

There is no need to lower the dosage for elderly patients over and individuals with kidney or liver failure of mild to moderate severity.

Singulair overdose

During the trials of the medication, the harmlessness of the high doses around 200 mg a day in adults was studied for six months and the doses up to 900 mg for one week. These studies hadn’t identified any significant or life-threatening adverse reactions to an overdose. However, it is assumed that the use of the dosages higher than 1000 mg can cause abdominal pain, drowsiness, thirst, headache, nausea, and agitation. The treatment can be aimed at the elimination of the symptoms if they are causing a lot of discomfort or a patient can wait till they disappear by themselves.

Singulair adverse effects

When you buy Montelukast for the first time and start using it you can develop:
- Headache, dizziness, fatigue, drowsiness, cramps, etc.
- Abdominal pain, diarrhea, dry mouth, indigestion, nausea, vomiting;
- Infections of the upper airways, pulmonary eosinophilia;
- Increased propensity to bleeding, thrombocytopenia.
- Hypersensitivity reactions starting from skin rash and mild swelling to anaphylaxis.
- Sleep disturbance, nightmares, hallucinations, insomnia, irritability, anxiety, agitation, aggression, tremor, suicidal thoughts and behaviors, memory impairment, and so on.
- Rapid heartbeat, pain in the chest;
- Hepatitis or other liver dysfunction;
- Arthralgia, myalgia, including muscle cramps.

Singulair interactions

The medication is never prescribed as a single therapy. Before you buy generic Montelukast, you must get precise instructions from your doctor on how and with what other medicines this medication can or must be combined.
If you use any other medications at the time you plan to buy this anti-asthma medication and use it, make sure to inform your doctor about it. You can find precise information on the drug’s interaction with other substances in the package insert.

Singulair precautions

When you order Singulair, you must strictly follow the prescribed treatment regimen and continue using the medication even in the significant symptoms improvement.
The tablets must not be utilized for acute suffocation attacks management. For them, all patients must at all times have short-acting bronchodilator inhalers with them.
If the need for short-acting, i.e. emergency help inhalers rises during the therapy with Singulair, the therapy must be revised and preferably other medications prescribed as such conditions indicate the aggravation of asthma.
The therapy with the formulation must not be abruptly switched to therapy with inhaled or oral corticosteroids. Consult a doctor on how to switch one medication for another safely.
The use of the formulation can cause psychoneurological symptoms (see the adverse effects section). Considering that these are dangerous adverse effects, doctors must inform their patients about them and point out the need to inform medical workers in behavioral or mood changes that can be related to the formulation use.

Where can you buy Singulair cheap?

The optimal way to get the pills cheaper is to order them in bulk from our med store. We not only offer you to order generic Singulair cheap but also save your money on Rx as w don’t need it and will ship your order for free if you buy pills or other medical products from our med store for $170 or more.

Singulair shipping

We guarantee that your order will be shipped to you within 7-25 days wherever you live – in the U.S., UK, Australia, Canada, or any other country. We deliver our products everywhere the international mail services operate.

Free prescription
Our doctor prescribes online for free, and there is no doctor’s consultation fee.

Discrete packaging
All orders arrive in discrete unmarked parcels. We leave the shipment description blank.

For more answers see the FAQ section


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