Generic Singulair Cost Savings Calculator
Key takeaways
- Generic Singulair (montelukast) is a leukotriene receptor antagonist used for asthma and allergic rhinitis.
- Buying online can shave 30‑70% off retail price when you follow a safety checklist.
- Verify the pharmacy’s licence, require a valid prescription, and check FDA approval.
- Brand‑name Singulair costs around£30per 30‑tablet pack, while generics often sit under£10.
- Watch for common side‑effects (headache, stomach upset) and rare but serious reactions.
Generic Singulair is a leukotriene receptor antagonist that contains the active ingredient montelukast. It works by blocking leukotrienes - chemicals that cause airway inflammation - and is prescribed for asthma and allergic rhinitis. Because the molecule is off‑patent, multiple manufacturers produce it at a fraction of the brand cost.
What is montelukast and how does it work?
Montelukast (chemical formula C35H36N2O3) received FDA approval in 1998 for chronic asthma control. As a leukotriene receptor antagonist, it binds to cysteinyl‑leukotriene type 1 (CysLT1) receptors in the lungs, preventing bronchoconstriction and mucus production. The result is fewer night‑time asthma attacks and reduced nasal congestion during allergy season.
Why buy generic instead of brand‑name Singulair?
Both brand and generic contain the exact same active ingredient, strength, dosage form, and therapeutic effect. The only measurable difference lies in price and, occasionally, inactive excipients. In the UK, a 30‑tablet pack of brand Singulair costs roughly £30, while reputable generics can be purchased for £8‑£12, representing a 60‑70% saving.
How to safely buy cheap generic Singulair online
Below is a step‑by‑step checklist that turns a risky click into a trusted transaction.
- Confirm the pharmacy is licensed. Look for a UK GMP (Good Manufacturing Practice) or EU/UK Medicines and Healthcare products Regulatory Agency (MHRA) registration number. An accredited site will display this number prominently.
- Tip: Enter the licence number on the MHRA website to verify status.
- Require a valid prescription. Montelukast is prescription‑only (Schedule4). Any site that offers it without a prescription is likely operating illegally.
- Check for secure connections. URLs should start with https:// and display a padlock icon.
- Compare price per tablet. Use the table below to benchmark.
- Read the return and privacy policy. Reputable pharmacies guarantee discreet packaging and a clear refund process.
- Beware of “no‑questions‑asked” free‑sample offers - they often hide hidden fees.
- Use a payment method with buyer protection. Credit cards or PayPal give you a charge‑back option if the medication never arrives.
Brand vs. generic - quick comparison
Attribute | Brand Singulair | Generic Montelukast |
---|---|---|
Active ingredient | Montelukast 10mg | Montelukast 10mg |
Manufacturer | Merck | Various (e.g., Teva, Mylan) |
Regulatory status | FDA & MHRA approved | FDA & MHRA approved |
Typical UK retail price | £30‑£35 | £8‑£12 |
Excipients | Lactose, magnesium stearate | Similar, may vary slightly |
Insurance coverage | Often covered | Typically covered, but check formulary |
Side‑effect profile | Identical - headache, GI upset | Identical - headache, GI upset |

Cost drivers behind cheap generic Singulair
Several factors influence price:
- Manufacturing scale. Large‑volume producers can spread fixed costs, lowering per‑tablet price.
- Regulatory pathway. Once a drug has a generic licence, the approval process is streamlined, saving fees.
- Supply chain efficiency. Direct‑to‑consumer online pharmacies cut out the retail markup you’d pay at a brick‑and‑mortar pharmacy.
- Currency fluctuations. Buying from EU‑based pharmacies may be cheaper when the pound is strong against the euro.
Safety, side‑effects, and contraindications
Montelukast is generally well‑tolerated, but you should be aware of:
- Common reactions: headache (≈10% of users), abdominal pain, and mild drowsiness.
- Rare but serious events: neuropsychiatric symptoms such as agitation, depression, or suicidal thoughts. The FDA added a black‑box warning in 2020.
- Contraindications: severe liver disease, known hypersensitivity to montelukast or any excipients.
Always discuss new prescriptions with your GP, especially if you have a history of mental health issues.
Regulatory backdrop - why the FDA and MHRA matter
The FDA (U.S. Food and Drug Administration) and the MHRA (UK Medicines and Healthcare products Regulatory Agency) enforce strict quality controls. A legitimate generic must meet the same bio‑equivalence standards as the brand.
If a website claims its product is “FDA‑approved” but cannot show the approval number, treat it as a red flag. Likewise, any pharmacy that does not list an MHRA licence number is operating outside UK law.
Choosing the right online pharmacy - practical checklist
Use this quick‑scan before you click “add to cart”:
- Licence number visible and verifiable.
- Requires a prescription uploaded or faxed.
- Secure https connection with clear privacy policy.
- Transparent pricing - total cost, shipping, taxes.
- Positive reviews on independent health forums (e.g., Patient.info, Reddit r/medicine).
- Contact details (phone, email) and responsive customer service.
Following this list reduces the chance of counterfeit drugs, which can contain wrong dosage or harmful contaminants.
Real‑world example: Sarah’s experience saving £20
Sarah, a 34‑year‑old teacher from Bristol, needed a 90‑day supply of montelukast for her seasonal allergies. She compared three online pharmacies:
- Pharmacy A - £30 per pack, no licence displayed.
- Pharmacy B - £11 per pack, MHRA licence120456, required uploaded GP prescription.
- Pharmacy C - £9 per pack, but offered “no‑prescription needed” and no https.
She chose Pharmacy B, uploaded her prescription, and received the medication within three days in discreet packaging. Total cost: £33 for three packs, a £20 saving versus the brand price.
Next steps after you receive your generic Singulair
When the bottle arrives, follow these best practices:
- Check the expiry date and verify the tablet description matches the label.
- Store in a cool, dry place - avoid bathroom humidity.
- Take one tablet daily, preferably in the evening, as advised by your GP.
- Monitor any new symptoms and report serious side‑effects immediately.
- Keep a copy of the receipt for insurance reimbursement.
With these habits, you’ll reap the cost benefits without compromising safety.

Frequently Asked Questions
Is it legal to buy generic Singulair online in the UK?
Yes, provided the online pharmacy holds a valid MHRA licence and requires a legitimate prescription. Purchasing from an unlicensed source is illegal and unsafe.
How much cheaper is generic Montelukast compared to the brand?
Typically 60‑70% cheaper. A 30‑tablet pack of brand Singulair costs around £30‑£35, while reputable generics range from £8‑£12.
Do generic and brand Singulair have the same side‑effects?
Yes. Both contain the same active ingredient, so the safety profile - headache, stomach upset, rare neuro‑psychiatric effects - is identical.
Can I use my US prescription to order Montelukast in the UK?
Most UK online pharmacies require a UK‑issued prescription. Some may accept a translated US prescription if it’s verified by a UK GP.
What should I do if my medication arrives damaged or wrong?
Contact the pharmacy’s customer service within 24hours. Reputable sites will offer a replacement or full refund and will report the issue to the MHRA.
Is there a risk of counterfeit generic Singulair?
Yes, if you buy from unlicensed sellers. Counterfeit tablets may contain no active ingredient or harmful contaminants. Always verify licence numbers and secure connections.
Can I get my generic Montelukast covered by NHS prescription?
The NHS typically reimburses the brand or any approved generic if it appears on the NHS Drug Tariff. Check with your GP or pharmacy for the exact formulary code.