Leukotriene receptor antagonist
Is Montelukast vegetarian or vegan-friendly?
Vegetarian and vegan patients sometimes ask whether their medication contains animal-derived ingredients. The active substance Montelukast in Montelukast is almost always synthetically produced; the question typically concerns excipients in the tablet or capsule shell at 4mg, 5mg, 10mg.
Animal-derived excipients in Montelukast
Common animal-derived excipients in pharmaceuticals include gelatin (in capsule shells, derived from porcine or bovine sources), lactose (dairy-derived), and certain magnesium stearate sources. The prescribing information and patient leaflet for Montelukast list excipients; whether they are animal-derived is sometimes specified, sometimes left ambiguous. Montelukast selectively blocks the CysLT1 receptor, which mediates the action of leukotrienes C4, D4 and E4 — proinflammatory mediators released by mast cells and eosinophils in the airway.
Practical guidance
According to general pharmacy practice, vegetarians and vegans concerned about Montelukast excipients should ask the pharmacist or manufacturer directly. Many medications have authorised generic versions with different excipient profiles — switching to a generic of Montelukast with vegetable-derived excipients is sometimes possible at 4mg, 5mg, 10mg. For strict requirements (e.g. religious or strong ethical), specialist pharmacy consultation gives definitive answers.
Frequently asked questions
Does Montelukast contain gelatin? ▾
Whether Montelukast contains gelatin depends on the formulation — capsule shells often do, tablet coatings sometimes do. The patient leaflet for Montelukast at 4mg, 5mg, 10mg lists excipients; the manufacturer or pharmacist can confirm gelatin source if not explicitly stated.
Is Montelukast suitable for vegans? ▾
Most modern tablet formulations are vegan-compatible (active ingredient synthetic, excipients usually plant or mineral), but capsule shells and some coatings may use animal-derived components. For strict vegan requirements, confirm with the manufacturer or pharmacist for the specific Montelukast product.
Products containing Montelukast
More on Montelukast
- With alcoholMontelukast and alcohol — is it safe to drink?
- With foodShould Montelukast be taken with food?
- Side effectsMontelukast side effects: common, rare and warning signs
- Dosage guideMontelukast dosage guide: how much to take and when
- OnsetHow fast does Montelukast start working?
- DurationHow long does Montelukast last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.