Singulair® (montelukast) tablets for asthma and allergies

What Singulair® Is and How It Works

Singulair® (montelukast) is a leukotriene receptor antagonist used for asthma control, exercise-induced bronchoconstriction prevention, and relief of allergic rhinitis symptoms. It is taken by mouth, most often once daily. Many patients compare brand and singulair generic options to manage costs, including searches for singulair cost no insurance. YouDrugstore is a licensed Canadian pharmacy in Manitoba, and licensed pharmacists review prescriptions before dispensing. We offer brand and generic medicines at Canadian prices, with customer-service chat during posted office hours.

This medicine blocks leukotrienes, which drive airway inflammation, mucus, and constriction. By reducing leukotriene activity, montelukast helps improve daytime and nighttime asthma symptoms, lowers the risk of flare-ups, and lessens nasal congestion, sneezing, and runny nose due to allergies. Tablets are commonly 10 mg for adults and adolescents, with chewable tablets and granules available for younger patients.

We partner with licensed, vetted international pharmacies to supply authentic brands and a wide range of treatments at fair prices. Ordering is available online or by phone where applicable, and pharmacists can address medication questions.

Dosage and Usage

Dosing varies by age and indication. Follow your prescriber’s directions and the product leaflet. Tablets can be taken with or without food.

• Asthma (adults/adolescents 15+): 10 mg once daily, often in the evening.
• Allergic rhinitis (adults/adolescents 15+): 10 mg once daily, any time of day.
• Exercise-induced bronchoconstriction (EIB): 10 mg at least 2 hours before exercise. Do not repeat within 24 hours.
• Not for sudden asthma attacks. Keep a rescue inhaler available as directed by your clinician.
• Missed dose: skip and resume the regular schedule; do not double doses.

Storage and travel:

• Store at 15–30°C in a dry place, away from moisture and light.
• Keep tablets in the original package until use.
• During travel, keep in carry-on baggage and avoid heat or freezing.
• Keep out of reach of children.

Benefits and Savings

Montelukast helps reduce asthma symptoms and nighttime awakenings. It lowers the chance of exacerbations when used as maintenance therapy. Many find once-daily oral dosing convenient compared to some inhaled regimens. For EIB, a single dose protects for up to 24 hours. For allergy symptoms, it can ease congestion and sneezing, and it can be combined with other therapies when appropriate.

Ordering through YouDrugstore can offer significant savings, often 60–80% versus typical US prices. Brand and generic selections are available, and patients paying without insurance can choose the option that fits their budget. US shipping is prompt and reliable.

Side Effects and Safety

Most people tolerate montelukast well. Some effects are mild and temporary. Seek medical advice for persistent or severe reactions.

• Common: headache, stomach pain, heartburn, fatigue, dizziness, cough, nasal congestion, or rash.
• Less common: dry mouth, diarrhea, or upper respiratory infection.
• Serious (seek urgent care): mood or behavior changes, agitation, depression, suicidal thoughts, sleep disturbances, hallucinations, or tremor.
• Allergic reactions: swelling of face or throat, hives, or trouble breathing.
• Rare: liver problems (nausea, dark urine, yellowing skin/eyes), vasculitis-like symptoms.

Montelukast carries a boxed warning in some regions for serious neuropsychiatric events. Report mood, sleep, or behavior changes promptly. Tell your healthcare provider about all medicines and supplements. Chewable tablets contain phenylalanine, which matters for phenylketonuria.

Onset Time

Some asthma symptom improvement can appear within the first day, with peak benefit over several days to weeks of regular use. For EIB, protection begins about 2 hours after a dose and lasts up to 24 hours. For allergic rhinitis, relief may begin within the first few days, with steady benefit as treatment continues.

Compare With Alternatives

For asthma control, inhaled corticosteroids (ICS) are first-line for many patients. ICS reduce airway inflammation at the source, while montelukast offers leukotriene pathway control. Some patients take both, especially when allergies worsen asthma.

A direct alternative is the generic form, Montelukast, which contains the same active ingredient and strength options as Singulair®. For patients who need a short-acting bronchodilator, a rescue inhaler or a combination inhaler may be used; for example, Combivent® Respimat Inhaler is used in specific airway diseases to relieve bronchospasm, but it is not a substitute for montelukast’s anti-inflammatory role.

For allergies, second-generation antihistamines and intranasal corticosteroids are common options. Montelukast may be chosen when nasal steroid sprays are not tolerated or when patients prefer once-daily oral dosing.

Combination Therapy

Montelukast is often combined with ICS for persistent asthma, and with antihistamines or intranasal steroids for allergic rhinitis. It does not treat acute bronchospasm, so a rescue inhaler plan remains important. Healthcare providers may also adjust therapy during high-allergen seasons or when exercise triggers symptoms.

Patient Suitability and Cost-Saving Tips

Montelukast suits many with mild to moderate persistent asthma, seasonal or perennial allergies, or exercise-triggered symptoms. It can also be considered in aspirin-exacerbated respiratory disease. Caution is needed in patients with prior mood disorders or liver impairment. Discuss pregnancy or breastfeeding plans with your clinician.

To lower out-of-pocket costs, compare brand and generic strengths, and consider multi-month supplies when appropriate, which can reduce the per-month price. Sign up for reorder reminders to avoid gaps in therapy. For current offers and bulk options, see our singulair coupon page. Patients purchasing without insurance may find the generic a better value.

Learn more about the conditions treated in our condition guides for Asthma and Allergic Rhinitis. Helpful reading includes What Is Asthma And How To Avoid It and 10 Proven Ways To Beat Seasonal Allergies This Year.

Authoritative Sources

See official information from regulators: the FDA Montelukast (Singulair) Information and the Health Canada Drug Product Database.

You can order from YouDrugstore with confidence. We are a licensed Canadian pharmacy in Manitoba, and our pharmacists review every prescription. We ship to the US with prompt, express, cold-chain shipping where required.

This information is not a substitute for professional medical advice. Always speak with a healthcare professional about diagnosis and treatment. Product availability, packaging, and manufacturers may vary by supply. Read the patient leaflet that comes with your medicine.