Services
- Is Stromectol available without prescription in the UK?
- What is Stromectol (ivermectin)?
- Mechanism of action
- Indications and uses
- Dosage forms and strengths
- Price and availability
- Ordering and purchasing online
- Generic vs branded ivermectin
- Side effects and safety information
- Contraindications and interactions
- Use in pregnancy and breastfeeding
- Storage and handling
- FAQ and additional information
Is Stromectol available without prescription in the UK?
Stromectol (ivermectin) is classified as a Prescription Only Medicine (POM) in the United Kingdom. This means it cannot be legally supplied without a valid prescription from a UK-registered prescriber. In special circumstances, a UK-licensed pharmacy may dispense ivermectin under professional supervision when issued via a private prescription. Over-the-counter supply without prescription is not permitted, unlike some other antiparasitic or broad-spectrum medications available elsewhere. Patients seeking to purchase Stromectol in the UK must therefore secure a prescription from a qualified clinician, such as a general practitioner or specialist, before ordering online or in store.
What is Stromectol (ivermectin)?
Active ingredient and class
Stromectol is the brand name for the antiparasitic active ingredient ivermectin. Ivermectin belongs to the macrocyclic lactone class of medications. It works by binding selectively to certain chloride channels found in nerves and muscle cells of sensitive parasites, leading to paralysis and death of the parasite. While originally developed for veterinary use, ivermectin has been adapted and authorised for human use, including branded formulations like Stromectol and a range of generic equivalents.
Approved pharmaceutical presentations
The authorised UK product Stromectol is commonly supplied as film-coated tablets with strengths of 3 mg and 6 mg. The tablet formulations differ in inactive ingredients, tablet colour and scoring, but the core active content remains consistent. The product is packaged in blister cards or plastic packs designed for controlled dispensing. The exact inactive composition and pack sizes are outlined in the Summary of Product Characteristics for Stromectol.
Mechanism of action
Ivermectin acts by potentiating the effects of glutamate-gated chloride ion channels in invertebrate nerve and muscle cells. The increased permeability disrupts neuronal transmission and muscle excitation, causing paralysis and eventual death of parasitic organisms. In humans, metabolism occurs primarily via hepatic CYP3A4 pathways, with renal excretion of metabolites. Stromectol’s high affinity for parasite-specific channels underlies its selective toxicity, allowing it to kill or disable a broad range of nematode and ectoparasitic infections when dosed appropriately.
At therapeutic concentrations, ivermectin does not significantly affect mammalian chloride channels, contributing to its safety margin. However, rare adverse events can result from central nervous system entry in patients with a compromised blood–brain barrier. Detailed pharmacokinetics include rapid oral absorption, peak plasma levels at two to four hours post-dose, and an elimination half-life of approximately 16–36 hours, which supports single-dose or short-course regimens.
Indications and uses
Stromectol is indicated for the treatment of a variety of parasitic infections in humans. The primary licensed uses in the UK include strongyloidiasis (threadworm infection caused by Strongyloides stercoralis) and onchocerciasis (river blindness). In certain cases, off-label or unlicensed prescribing may cover conditions such as scabies or other ectoparasitic infestations under clinical discretion. Each indication stipulates specific dosage regimens and monitoring requirements, which are detailed in the product leaflet.
For strongyloidiasis, a single dose of 200 micrograms per kilogram body weight is typically recommended. River blindness treatment may involve multiple doses spaced over several weeks. Clinical guidelines emphasise the importance of diagnosing the specific parasite, weighing benefits and potential drug interactions, and following up post-treatment to ensure parasitological cure or reduction of microfilarial load.
Dosage forms and strengths
Stromectol tablets are available in strengths of 3 mg and 6 mg. Select the appropriate strength based on the patient’s weight and the prescribed microgram per kilogram dosage. Tablets are scored to facilitate splitting if required. Packaging options commonly include packs of one or two tablets, with each blister labelled to assist accurate dispensing. Patients are advised to swallow tablets whole with water at least one hour before or two hours after a meal to optimise absorption.
Weight-based dosing charts are included in the patient information leaflet to guide prescribers. For example, a 70 kg adult requiring a 200 micrograms/kg dose would take a total of 14 mg, which could be administered as two 6 mg tablets plus one 3 mg tablet. Always consult the prescribing clinician or pharmacist for exact dosing instructions tailored to individual circumstances.
Price and availability
Why do prices vary?
Prices for Stromectol and generic ivermectin differ according to manufacturer, pack size, wholesale procurement, pharmacy mark-up and VAT considerations. As a prescription-only medication, NHS prescription charges or private prescription fees may apply. Independent pharmacies may offer cost savings through bulk purchasing of generic equivalents. Markeaton Pharmacy provides competitive pricing on generic ivermectin, often significantly lower than branded Stromectol.
Example price comparison
| Product | Strength | Pack size | Price (GBP) | Notes |
|---|---|---|---|---|
| Stromectol | 3 mg | 1 tablet | £22.50 | Branded, NHS prescription charge may apply |
| Generic ivermectin | 3 mg | 1 tablet | £7.99 | Private prescription, lower cost |
| Generic ivermectin | 6 mg | 2 tablets | £15.99 | Pack of 2, best-value option |
For current stock and prices, please contact Markeaton Pharmacy in Derby or check our online ordering system. Prices are subject to change based on supply and regulatory updates.
Ordering and purchasing online
Patients with a valid UK prescription can order Stromectol or generic ivermectin online from Markeaton Pharmacy. Our secure website allows prescription upload, selection of generic or branded product, and choice of delivery method. Orders placed before 3pm on weekdays typically dispatch same day, with tracked courier delivery across the UK. A 14-day free returns policy applies for unopened packs, and our pharmacy team is available by phone or email to answer queries about your order.
We advise checking your prescription details carefully, including patient name, dose, and prescriber information, before uploading. Once validated by our pharmacist, payment confirmation will trigger order processing. Prescription fulfilment times can vary based on prescription type—private prescriptions often process more quickly than NHS prescriptions, which require additional verification steps.
Generic vs branded ivermectin
Generic ivermectin contains the same active molecule as Stromectol and meets UK regulatory standards for bioequivalence. Inactive ingredients, tablet appearance and packaging may differ between manufacturers. Generics are rigorously assessed by the Medicines and Healthcare products Regulatory Agency (MHRA) for quality, safety and efficacy before market authorisation. Choosing generic ivermectin can yield cost savings without compromising therapeutic outcomes.
Patients may notice differences in tablet colour, shape or blister layout. This does not affect efficacy. Your pharmacist can advise on substitutability and address any concerns about inert ingredients or manufacturer labels. Both generic and branded products carry the same product information leaflet requirements, ensuring patient awareness of indications, dosing, side effects and warnings.
Side effects and safety information
Common side effects of ivermectin (Stromectol) include dizziness, headache, gastrointestinal discomfort such as nausea or abdominal pain, and mild skin itching. Adverse reactions are generally mild and transient. Serious events are rare but can include severe hypersensitivity reactions, neurological symptoms or hypotension. Detailed frequency data are provided in the patient leaflet and Summary of Product Characteristics for each specific product.
Patients should monitor for signs of rash, facial swelling, difficulty breathing or rapid heartbeat, and seek urgent medical advice if these occur. Co-administration with medications that cross the blood–brain barrier may increase central nervous system exposure, so inform your prescriber of all concurrent therapies. Report any unexpected effects to your pharmacist or prescriber promptly.
Contraindications and interactions
- Hypersensitivity to ivermectin or excipients
- Children under five years old or weighing less than 15 kg (consult specialist guidance)
- Pregnant or breastfeeding women, unless clinical benefit outweighs potential risk and after medical consultation
- Concurrent use of strong CYP3A4 inhibitors (e.g., ketoconazole, clarithromycin) may elevate ivermectin exposure
- Coadministration with other neurotoxic drugs requires careful monitoring
Always provide a full medication history, including over-the-counter treatments, herbal supplements and recreational substances. Ivermectin may interact with warfarin, increasing bleeding risk, and with certain antiretrovirals. Dose adjustments or alternative therapies may be required in patients with significant hepatic impairment.
Use in pregnancy and breastfeeding
Data on ivermectin use in pregnancy are limited. Animal studies have shown reproduction toxicity at high doses. Human data do not indicate a clear risk but are insufficient to guarantee safety. Stromectol should be prescribed in pregnancy only if the potential benefit justifies any potential risk to the fetus. Breastfeeding mothers should avoid ivermectin or temporarily suspend breastfeeding for 2–3 days after administration due to excretion in breast milk.
Always discuss your individual circumstances with your prescriber. Alternative treatments may be considered based on the severity of infection, gestational age and available safety data. Specialist advice from an obstetrician or tropical medicine expert may be warranted for pregnant or breastfeeding patients.
Storage and handling
Store Stromectol or generic ivermectin tablets at room temperature between 15°C and 25°C. Protect from moisture and direct sunlight. Do not refrigerate or freeze. Keep the product in its original packaging until use to maintain blister integrity and protect against environmental factors.
Keep all medicines out of reach of children and pets. Dispose of unused or expired tablets via your pharmacy’s medicine take-back service. Do not flush tablets down the toilet or discard in household waste.
FAQ and additional information
Can I split ivermectin tablets?
Yes, Stromectol tablets are scored and may be split along the score line to achieve the required microgram-per-kilogram dose. Use a proper tablet splitter for accuracy. Avoid crushing tablets into powder to prevent dosage errors.
What should I do if I miss a dose?
For single-dose regimens, missed doses cannot be replaced. Contact your prescriber for guidance. For multi-dose regimens, take the missed dose as soon as remembered unless it is almost time for the next dose. Do not double-dose.
Is treatment effective the first time?
Effectiveness depends on correct diagnosis, accurate dosing and weight calculation. Follow-up stool or blood tests may be required to confirm parasitological cure. In some cases, repeat treatment after a specific interval may be recommended.
Where can I find official UK prescribing information?
Refer to the MHRA database, the electronic Medicines Compendium (eMC) or the official Summary of Product Characteristics for Stromectol and generic ivermectin brands. These sources provide comprehensive regulatory, safety and clinical guidance.
Does this information replace medical advice?
No. This article provides general information about purchasing Stromectol and generic ivermectin in the UK. For personalised recommendations, diagnosis or treatment, please consult a qualified healthcare professional or speak directly with the pharmacy team at Markeaton Pharmacy, 126 Kedleston Road, Derby, DE22 1FX.