- Is Stromectol available without prescription in the UK?
- What is Ivermectin and how does it work?
- Approved indications for Stromectol
- Off-label uses and emerging evidence
- Price and availability information
- Dosage forms, strengths and pack sizes
- How to buy Stromectol safely online in the UK
- Generic vs branded Ivermectin
- Side effects and tolerability
- Contraindications and drug interactions
- Use in pregnancy, breastfeeding and children
- Storage, handling and shelf life
- What to do in case of overdose
- Regulatory status and prescribing process
- Additional information about Stromectol
Stromectol, the brand name for ivermectin, is an antiparasitic medicine widely prescribed to treat a variety of parasitic infections. This comprehensive guide covers everything you need to know about purchasing Stromectol online in the UK — from legal status and pricing to dosage, safety, and reliable sources for the cheapest generic and branded options.
Is Stromectol available without prescription in the UK?
In the United Kingdom, Stromectol (ivermectin) is classified as a Prescription Only Medicine (POM). It is not available for purchase without a valid prescription issued by a qualified healthcare professional. Under UK law, any supply of ivermectin requires a consultation, either in person or through a registered online pharmacy service, to ensure appropriate use. This safeguards patient safety and helps prevent misuse or inappropriate self-medication. Occasionally, specialist clinics may offer telemedicine consultations to facilitate access, but a prescription remains mandatory. While some countries allow over-the-counter supply for veterinary or antiparasitic uses, UK regulations strictly reserve ivermectin for prescription-based human use only.
What is Ivermectin and how does it work?
Active ingredient and mechanism of action
Ivermectin is a macrocyclic lactone derived from avermectins, naturally occurring fermentation products of Streptomyces avermitilis bacteria. Its primary mechanism involves binding to glutamate-gated chloride channels in invertebrate nerve and muscle cells, increasing cell membrane permeability to chloride ions. This action leads to neuromuscular paralysis and death of susceptible parasites. In humans, ivermectin selectively targets parasites without significant action on human ion channels, providing a high margin of safety when used at therapeutic dosages.
Pharmacokinetics
After oral administration, ivermectin is absorbed variably, with peak plasma concentrations achieved in roughly four hours. It undergoes extensive hepatic metabolism, mainly via CYP3A4, and is excreted primarily in feces. Its half-life ranges from 12 to 36 hours, supporting single-dose regimens for many indications. Fatty meals can increase absorption by up to threefold, which can enhance efficacy but also theoretically elevate the risk of adverse events.
Broad-spectrum activity
Originally developed for veterinary applications, ivermectin has proven effective against a broad range of nematodes and ectoparasites. Its spectrum in humans includes treatment of onchocerciasis (river blindness), strongyloidiasis, scabies, and certain myiasis conditions. Emerging research explores its antiviral and anti-inflammatory properties, but these remain off-label and are not yet established in UK clinical guidelines.
Approved indications for Stromectol
Strongyloidiasis
Strongyloides stercoralis infection, also known as strongyloidiasis, can cause chronic gastrointestinal distress, dermatological symptoms, and potentially fatal hyperinfection in immunocompromised patients. A single-dose regimen of 200 micrograms per kilogram body weight is typically effective, though some cases require repeated dosing under specialist supervision.
Onchocerciasis (River Blindness)
Onchocerca volvulus infection leads to severe ocular and skin disease in endemic regions. Ivermectin at 150 micrograms per kilogram annually or biannually reduces microfilarial load and transmission. While mass drug administration programs operate in parts of Africa and Latin America, UK patients returning from endemic areas may also receive prescriptions.
Scabies
Scabies, caused by the mite Sarcoptes scabiei, can be treated with oral ivermectin when topical therapies are impractical or have failed. A common regimen involves two doses of 200 micrograms per kilogram separated by one to two weeks. Prescription guidance emphasizes treating close contacts simultaneously to prevent reinfestation.
Other parasitic infections
Stromectol is also authorised for treatment of crusted (Norwegian) scabies under specialist supervision. Off-label treatment of head lice and certain types of myiasis may be considered by clinicians, but such uses require careful risk-benefit assessment.
Off-label uses and emerging evidence
Although primarily an antiparasitic, ivermectin has gained attention for potential antiviral and anti-inflammatory effects. Research spans applications in viral illnesses, such as dengue and certain arboviruses, and even COVID-19, though UK regulatory bodies have not approved such uses. Clinical trials remain ongoing, with early data showing variable outcomes. Off-label prescribing in the UK is permissible only when supported by sound evidence and under the strict oversight of a specialist prescriber. Patients should be cautious of unverified claims online and always seek medical advice before using ivermectin for non-approved indications.
Price and availability information
How much does Stromectol cost in the UK?
Prescription charges apply to Stromectol in NHS contexts; a standard prescription costs £9.35 per item as of 2026, unless exempt. Private purchase prices vary by pharmacy, pack size and whether you choose generic or branded product. Online pharmacies often list a 3 mg tablet pack (6, 12 or 24 tablets) for between £20 and £60 depending on quantity and delivery options. Prices may be lower for bulk orders or generic ivermectin sourced from licensed manufacturers.
Why do prices differ?
Differences in price arise from supplier margins, brand premiums, pack size, shipping costs and dispenser fees. “Fast delivery” services or home-medicine reviews can add to the cost. Comparisons between multiple reputable online pharmacies or asking a community pharmacist can yield the best deals, but always verify MHRA registration and license status before purchase.
| Example | Dosage | Pack size | Price (GBP) | Supplier | Note |
|---|---|---|---|---|---|
| Generic Ivermectin | 200 µg/kg | 6 tablets | £25.00 | Online | Fast delivery |
| Stromectol 3 mg | 3 mg | 12 tablets | £48.50 | High street | NHS prescription fee may apply |
| Generic Ivermectin | 3 mg | 24 tablets | £60.00 | Online | Cheaper per tablet |
Dosage forms, strengths and pack sizes
Supported formulations
In the UK, ivermectin is available as 3 mg oral tablets under the Stromectol brand and equivalent generic presentations. Tablets are film-coated for stability and ease of swallowing.
Typical strengths
Most products contain 3 mg of active ivermectin per tablet. Dosage regimens are calculated by weight to achieve the therapeutic dose of approximately 150–200 micrograms per kilogram for most indications.
Pack presentations
Packs typically include 6, 12 or 24 tablets, corresponding to single or multiple-dose regimens. The choice of pack size depends on the indication, body weight of the patient and prescriber recommendation. Some online pharmacies allow split packs or custom pack sizes within the legal framework.
Generic vs brand packaging
Generic medicines contain the same active ingredient, dose and must meet the same quality standards as branded Stromectol. Packaging, leaflet design and excipients may differ, but the clinical performance remains equivalent when sourced from an MHRA-approved manufacturer.
How to buy Stromectol safely online in the UK
Choosing a registered pharmacy
Always verify the registration number and physical address of any online pharmacy. Look for the green padlock and “.uk” domain, and check registration with the General Pharmaceutical Council (GPhC) and MHRA. Avoid websites based offshore without UK licensing, as these may supply unregulated products.
Prescription verification
UK law mandates submission of a prescription before dispatch. Online services may accept electronic prescriptions from UK-registered prescribers or conduct a teleconsultation. Do not share personal payment details until the pharmacy provides confirmation of licensing and prescription acceptance.
Delivery and packaging
Pharmacies offer standard or express delivery, often using discrete packaging. Delivery times range from same-day courier services in urban areas to 2–4 days for standard post. Check shipping policies, returns, and cold-chain requirements (though ivermectin is typically stable at room temperature).
Customer support and reviews
Reliable pharmacies provide accessible customer service by phone or email, with clear return and refund policies. Read independent user reviews and ratings, but give greater weight to official accreditation and clear contact information.
Generic vs branded Ivermectin
Quality and regulation
Generic ivermectin must demonstrate bioequivalence to Stromectol in pharmacokinetic studies. MHRA approval requires rigorous quality checks, ensuring identical active content and similar dissolution profiles.
Cost differences
Generics are often 30–50% cheaper than the branded product, reflecting lower marketing costs. Bulk purchasing by online pharmacies can further reduce per-tablet prices.
Excipients and tolerability
Inactive ingredients may vary between brands and generics; some patients with specific allergies may prefer one formulation over another. Check the patient information leaflet for excipient lists, especially if you have known sensitivities to lactose, dyes or preservatives.
How to select
For cost-conscious patients, generic ivermectin from a reputable MHRA-approved source offers maximum savings. Branded Stromectol may be chosen for brand loyalty or perceived premium quality, though clinical outcomes are equivalent.
Side effects and tolerability
Common adverse effects
Most patients tolerate ivermectin well. Common mild side effects include headache, dizziness, gastrointestinal discomfort (nausea, diarrhea), and transient pruritus due to parasite die-off (Mazzotti reaction) in onchocerciasis.
Neurological symptoms
Rare cases of confusion, seizures or ataxia have been reported, particularly in patients with high parasitic load or co-infection with Loa loa. Such severe events are extremely uncommon in UK-treated patients with standard indications.
Allergic reactions
Hypersensitivity reactions, including rash, urticaria or angioedema, are rare but require immediate medical attention. Anaphylactic reactions are exceptionally rare but possible.
Monitoring and reporting
Patients should report any unusual symptoms to their prescriber or pharmacist. Side effects can be tracked via the MHRA “Yellow Card” scheme, contributing to ongoing safety surveillance.
Contraindications and drug interactions
Absolute contraindications
- Known hypersensitivity to ivermectin or any excipient in the product
- Children weighing less than 15 kg (or per local guidance)
- Pregnancy (unless benefit outweighs risk and under specialist advice)
Drug interactions
Ivermectin is a substrate of CYP3A4 and P-glycoprotein. Co-administration with potent CYP3A4 inhibitors (e.g., ketoconazole, clarithromycin) may increase plasma levels and risk of toxicity. Conversely, CYP3A4 inducers (e.g., rifampicin, phenytoin) may reduce efficacy.
Other considerations
Coadministration with warfarin has been reported to alter INR levels in rare cases, although clinical significance remains low. Always inform your prescriber of all medications, including over-the-counter and herbal products.
Use in pregnancy, breastfeeding and children
Pregnancy
Stromectol is typically avoided during pregnancy unless the parasitic infection poses a greater risk to mother and foetus. Data are limited, and risk-benefit assessment must be conducted by a specialist.
Breastfeeding
Small amounts of ivermectin pass into breast milk. While no significant adverse effects have been documented in breast-fed infants, caution is advised. Consider delaying treatment or interrupting breastfeeding for 36–48 hours post-dose.
Paediatric use
Use in children under 15 kg body weight is contraindicated due to limited safety data. For children above this weight, dosing is by mg/kg body weight and must be supervised by a paediatric specialist or experienced prescriber.
Storage, handling and shelf life
Storage conditions
Store tablets in their original blister pack, below 25°C, and protect from moisture. Do not refrigerate. Keep out of reach of children and pets.
Shelf life
Check the expiry date on the pack. Do not use beyond the printed date. If unopened packs are stored correctly, tablets remain stable until expiry.
Disposal
Do not flush unused medicine down the toilet. Return unused or expired tablets to a pharmacy medicine take-back scheme for safe disposal in accordance with UK waste regulations.
What to do in case of overdose
Symptoms of ivermectin overdose can include severe dizziness, tremor, confusion, hypotension and ataxia. In the event of suspected overdose, seek urgent medical attention or contact NHS 111. There is no specific antidote; treatment is supportive, focusing on managing symptoms and vital signs. Bring the medication pack to the hospital to assist healthcare professionals in determining the amount ingested.
Regulatory status and prescribing process
MHRA and GPhC oversight
Ivermectin is regulated by the Medicines and Healthcare products Regulatory Agency (MHRA). Pharmacists operating online must be registered with the General Pharmaceutical Council (GPhC) and comply with MHRA standards for dispensing prescription medicines.
Prescription requirements
UK prescribers, including GPs and specialist consultants, may issue a prescription following clinical assessment. Online consultations leading to a prescription must be provided by a UK-registered prescriber and adhere to remote prescribing guidelines, ensuring identification and appropriate medical review.
Falsified Medicines Directive (FMD)
All packs of Stromectol in the UK carry safety features, including unique identifiers and anti-tampering seals. Pharmacies must scan and verify these features at the point of dispensing to prevent distribution of falsified medicines.
Additional information about Stromectol
What does “generic ivermectin” mean?
A generic medicine contains the same active substance, dosage form and strength as the branded product, demonstrating bioequivalence in regulatory studies. Generic ivermectin may differ in appearance and excipients but is held to the same quality, safety and efficacy standards as Stromectol.
Why are pack sizes regulated?
Pack sizes and strengths are authorised based on clinical indication, typical regimen and risk management strategies. Off-label use or extended-release formulations may require specialist import licences or patient-specific batch release under human medicines regulations.
Where to verify medicine information
Reliable sources include the MHRA website, electronic Medicines Compendium (eMC), patient information leaflets included with the pack, and official clinical guidelines such as the British National Formulary (BNF).
Does this page replace professional advice?
No. This page provides general information about Stromectol (ivermectin) and online purchase options. It is not a substitute for professional medical advice. Always consult a qualified prescriber or pharmacist before starting any new medicine.