Singulair vs Montelukast: are they the same?
Singulair is a commercial brand whose active ingredient is exactly Montelukast. This page explains what that means in practice: where they differ (brand, manufacturer, price, available strengths), why they are clinically equivalent, and when the brand or an authorised generic is the better choice.
Are they the same?
Yes — Singulair contains Montelukast as its active ingredient. Talking about "Singulair" in clinical terms is the same as talking about Montelukast at the dose strengths 4mg, 5mg, 10mg. The differences from the authorised generic are brand, manufacturer (Organon), excipients, tablet appearance and price — not the active molecule itself.
When Singulair is used
Singulair is approved in adults and children for the maintenance treatment of asthma, including exercise-induced bronchospasm, and for the treatment of seasonal and perennial allergic rhinitis when conventional therapy is insufficient or no…
Mechanisms compared
Because they share the same active ingredient, the mechanism is identical: Montelukast selectively blocks the CysLT1 receptor, which mediates the action of leukotrienes C4, D4 and E4 — proinflammatory mediators released by mast cells and eosinophils.
Brand or generic — which to choose?
For most patients, authorised generics of Montelukast are clinically equivalent substitutes for Singulair and typically cost substantially less. The practical differences are manufacturer, excipients (rarely matters except in specific sensitivities), tablet appearance and price. The brand is preferred by some patients for personal reasons or insurance coverage; the generic is the default when cost matters.
Frequently asked questions
Is Singulair the same as Montelukast? ▾
Clinically yes — Singulair is the brand and Montelukast is its active ingredient. At equivalent doses (4mg, 5mg, 10mg) they produce the same effect. The difference is brand, manufacturer (Organon) and price.
Is generic Montelukast as effective as Singulair? ▾
Yes. Authorised generics of Montelukast must demonstrate bioequivalence to the brand. The active substance is the same; average effect is the same. Price is usually substantially lower.
Why does Singulair cost more than generic Montelukast? ▾
The price difference reflects originator development costs, brand recognition and competition among generic manufacturers. The molecule is identical; the cost is not.
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.