Services
- Is stromectol (ivermectin) available without prescription in the UK?
- What does Prescription Only Medicine mean in the UK?
- General information about ivermectin
- How ivermectin works against parasites
- Price and availability information
- Strengths, formulations and pack types
- Approved uses and clinical indications
- UK legal classification: POM, P and GSL
- Alternatives for parasitic infections
- Ivermectin compared with other antiparasitic medicines
- Food, alcohol and lifestyle considerations
- Side effects and tolerability
- Long-term use and resistance concerns
- Warnings, contraindications and interactions
- Additional information about generic Stromectol
Is stromectol (ivermectin) available without prescription in the UK?
Stromectol, the brand name for ivermectin, is normally classified as a Prescription Only Medicine (POM) in the United Kingdom. This means that a valid prescription from a qualified healthcare professional is typically required before obtaining the product. However, some reputable online pharmacies operate under a remote consultation model or online clinic service. Through these services, patients can complete a brief medical questionnaire assessed by a UK-registered prescriber. Based on the responses, a prescriber may issue a prescription electronically, allowing patients to order stromectol online without a paper prescription. While this process can feel like purchasing without a prescription, it remains compliant with UK regulations as it involves professional review before supply. At Markeaton Pharmacy, we offer streamlined online ordering, ensuring fast delivery and cheap generic prices. Always verify that any online service is regulated by the General Pharmaceutical Council (GPhC) and follows MHRA guidelines.
What does Prescription Only Medicine mean in the UK?
In the UK, human medicines are categorized into three main legal supply classes: Prescription Only Medicine (POM), Pharmacy medicine (P), and General Sales List (GSL) medicines. A POM cannot be legally supplied without a prescription issued by an authorized prescriber, such as a doctor, dentist, or non-medical prescriber (e.g., pharmacist prescriber). POMs are used for conditions that require a professional diagnosis or ongoing monitoring and may include medicines with potential safety concerns, the need for dosage adjustment, or medicines used for serious conditions. Ivermectin, especially in its oral tablet form for systemic parasitic infections, remains a POM. Even when generic versions are available, professional medical oversight is essential to ensure safety, correct dosing, and monitoring.
General information about ivermectin
What is ivermectin?
Ivermectin is an antiparasitic agent first discovered in the late 1970s. It belongs to the macrocyclic lactone class of compounds and has revolutionized the treatment of various parasitic infestations in humans and animals. In dermatology, it’s also used in topical form for conditions such as rosacea. Oral ivermectin tablets are typically marketed under brand names like Stromectol and as generic ivermectin tablets.
Where does the name “ivermectin” come from?
The name derives from “avermectin,” a group of compounds isolated from the bacterium Streptomyces avermitilis. Ivermectin is a mix of the B1a and B1b components of avermectin, optimized for human and animal use.
Why is ivermectin important?
Ivermectin has been used globally in mass drug administration programs to control onchocerciasis (river blindness) and lymphatic filariasis. Its high efficacy, good tolerability, and single-dose regimens for many indications make it highly valuable in public health initiatives.
Are generic and branded ivermectin identical?
Generic products contain the same active ingredient and must meet the same regulatory quality, safety, and efficacy standards as the reference branded medicine (Stromectol). Differences may exist in inactive ingredients, tablet appearance, packaging, and pricing.
Is ivermectin an antibiotic?
No. Antibiotics target bacteria, whereas ivermectin acts against certain parasites by interfering with their nervous system function. It does not have antibacterial activity.
Does ivermectin treat all parasites?
Ivermectin is effective against a specific spectrum of parasitic infections, including strongyloidiasis, onchocerciasis, certain types of scabies and lice, and other nematode infestations. It is not effective against protozoal infections, fungi, or bacterial infections.
How ivermectin works against parasites
What is the primary mechanism of action?
Ivermectin binds selectively to glutamate-gated chloride channels in the nerve and muscle cells of invertebrates. This increases the permeability of the cell membrane to chloride ions, leading to hyperpolarization, paralysis, and death of the parasite. Mammalian cells do not possess glutamate-gated chloride channels, contributing to ivermectin’s safety margin in humans.
Does ivermectin affect human nerve cells?
At therapeutic concentrations, ivermectin does not significantly cross the blood-brain barrier in humans, limiting its action on the central nervous system. However, caution is exercised in individuals with compromised barriers or specific genetic variants.
How quickly does it work?
Oral ivermectin is rapidly absorbed, with peak plasma concentrations reached within 4 hours. Clinical improvement in parasitic symptoms is often observed within 24–48 hours, but complete eradication may require repeat dosing or combination therapy depending on the condition.
Is a single dose sufficient?
For many indications like strongyloidiasis or scabies, a single weight-based dose (e.g., 200 µg/kg) is commonly used. However, repeated doses at weekly or monthly intervals may be recommended for persistent or heavy infestations.
Can resistance develop?
Parasite resistance to ivermectin has been documented in veterinary settings and, to a lesser extent, in human treatments. Monitoring and prudent use, including combination with other antiparasitic agents when indicated, help mitigate resistance risks.
Price and availability information
How much does stromectol cost in the UK?
Prices vary by brand or generic, pack size, dosing schedule, and supplier. At Markeaton Pharmacy, we strive to offer the cheapest generic ivermectin tablets for self-care and prescribed indications. Our online pricing is regularly updated, and we frequently run promotions for bulk pack discounts. Contact us in store or online for the latest best price information.
Why do prices vary between providers?
Variation arises from manufacturer pricing, wholesale discounts, import costs, regulatory fees, and retailer mark-up. A lower price does not imply substandard quality; always verify MHRA registration and batch testing information.
| Example | Strength | Formulation | Price (GBP) | Status | Note |
|---|---|---|---|---|---|
| Generic Ivermectin A | 3 mg | Film-coated tablets | £14.99 | In stock | Order online, fast UK delivery |
| Generic Ivermectin B | 6 mg | Film-coated tablets | £24.99 | In stock | Pack of 4 or 8 tablets |
| Stromectol | 3 mg | Film-coated tablets | £29.99 | Prescription | Brand name product |
Strengths, formulations and pack types
What strengths of ivermectin exist?
Oral ivermectin tablets are commonly available in strengths of 3 mg and 6 mg. The dose is calculated by weight (µg/kg), so tablets may be broken or combined to achieve the correct total dose. Higher-strength formulations may be available in some countries but are less common in UK markets.
What formulations are available?
The most common formulation is a film-coated oral tablet for systemic therapy. Topical formulations (e.g., 1% cream) are authorized for certain dermatological conditions such as rosacea. Injectable forms are used in veterinary medicine but are not licensed for human use in the UK.
Why pack size matters?
Pack sizes vary from single-dose blister packs to multi-tablet cartons of 4, 8, or 24 tablets. A multi-dose pack may be more cost-effective for patients requiring repeated courses, but unused tablets should be stored according to the manufacturer’s instructions and not reused beyond expiry.
Are other dose forms possible?
Ivermectin tablets can be compounded into liquid form for patients with swallowing difficulties, but this requires a valid prescription and preparation by a licensed pharmacy compounding service.
Approved uses and clinical indications
What is strongyloidiasis?
A parasitic infection caused by Strongyloides stercoralis, which can persist for decades in the human host. Standard treatment is a single or two-dose regimen of ivermectin. Clearance rates exceed 90% in uncomplicated cases.
What is onchocerciasis?
Also known as river blindness, caused by the worm Onchocerca volvulus transmitted by blackfly bites. Community-wide ivermectin distribution programs help control transmission and reduce disease burden.
How is ivermectin used for scabies?
Oral ivermectin is indicated off-label for crusted (Norwegian) scabies and resistant cases of typical scabies. It is often used in combination with topical permethrin.
Is ivermectin used for head lice?
Yes. Topical formulations or oral doses can be used in resistant head lice infestations, especially when topical therapies have failed.
What about other off-label uses?
Emerging evidence suggests ivermectin’s role in treating certain viral or inflammatory conditions, but these uses are not routinely authorized in the UK and require specialist oversight.
UK legal classification: POM, P and GSL
What is a POM?
A Prescription Only Medicine requires a prescription and cannot be sold or supplied without one. Ivermectin oral tablets are POM due to the need for accurate dose calculation and potential monitoring of side effects.
What is a Pharmacy medicine (P)?
Some topical antiparasitic treatments, such as permethrin cream for scabies, are classified as Pharmacy medicines. They may be supplied by a pharmacist without a prescription but under pharmacy supervision.
What is a GSL medicine?
GSL medicines can be sold in non-pharmacy outlets. There are no GSL presentations of ivermectin; all ivermectin products fall under POM or P classifications.
Why does classification matter?
Classification affects where and how a medicine can be supplied. A POM must be dispensed by a pharmacist against a valid prescription, whereas P medicines can be supplied following professional assessment but without a prescription.
Alternatives for parasitic infections
What are other treatments for scabies?
- Permethrin 5% cream (first-line topically);
- Benzyl benzoate;
- Malathion lotion;
- Topical crotamiton;
- Sulfur ointments.
What about alternatives for strongyloidiasis?
Albendazole is sometimes used where ivermectin is contraindicated or unavailable, though efficacy may be lower.
Are there other onchocerciasis treatments?
Doxycycline targeting Wolbachia bacteria in the worm is an alternative or adjunct therapy, used under specialist supervision.
Ivermectin compared with other antiparasitic medicines
How does ivermectin compare with albendazole?
Albendazole is a broad-spectrum antihelminthic that inhibits microtubule synthesis in parasites. Ivermectin’s mechanism is distinct, targeting chloride channels. Both have good safety profiles but different activity spectra.
How does ivermectin compare with diethylcarbamazine?
Diethylcarbamazine (DEC) is used in filariasis treatment. It has a different mechanism involving immune-mediated clearance. DEC can cause severe reactions in onchocerciasis and is less commonly used in regions where onchocerciasis is endemic.
| Feature | Ivermectin | Albendazole | Permethrin |
| Drug class | Macrocyclic lactone | Benzimidazole | Pyrethroid |
| Mechanism | Glutamate-gated chloride channel agonist | Inhibits β-tubulin polymerization | Disrupts sodium channel function |
| Oral use | Yes | Yes | No (topical) |
| OTC availability UK | No (POM) | No (POM) | Yes (P) |
Is one antic parasitic always better?
No. Selection depends on parasite species, patient factors, local resistance patterns, and safety considerations. A healthcare professional should guide the choice.
Food, alcohol and lifestyle considerations
Can diet influence treatment?
Ivermectin absorption is enhanced when taken with food, especially fatty meals. Patients are generally advised to take it on a full stomach to improve bioavailability.
Can alcohol affect effectiveness?
Alcohol does not significantly alter ivermectin metabolism but may worsen side effects such as dizziness or gastrointestinal discomfort. Avoid excessive alcohol intake around dosing times.
Does smoking matter?
Smoking does not directly affect ivermectin pharmacokinetics, but quitting smoking can improve overall health and immune function, aiding recovery from infections.
Are travel considerations relevant?
When traveling to endemic areas, prophylactic regimens of ivermectin may be recommended. Consult a travel clinic for individualized advice on dosage and timing.
Side effects and tolerability
Can ivermectin cause side effects?
Yes. Most side effects are mild and transient. Common reactions include headache, dizziness, nausea, diarrhea, and fatigue. These are usually self-limiting or manageable with supportive care.
| System | Examples |
| Gastrointestinal | Nausea, diarrhea, abdominal pain |
| Nervous system | Dizziness, headache, somnolence |
| Skin | Rash, itching |
| Neurological | Rare encephalopathy in Loa loa co-infection |
| Hypersensitivity | Rare allergic reactions, including angioedema |
Why are adverse events listed?
Regulatory requirements mandate the listing of all reported effects, from common to rare, so healthcare providers and patients can identify warning signs and seek help if needed.
Are side effects dose-dependent?
Higher or repeated doses may increase the risk of side effects. Weight-based dosing and adherence to recommended regimens reduce this risk.
Long-term use and resistance concerns
Is long-term ivermectin use safe?
Short courses are generally well tolerated. Long-term use for onchocerciasis control is common in public health programs, with monitoring for emerging resistance and rare adverse neurological events.
Can parasites develop resistance?
Resistance has been observed in veterinary applications. Human treatment programs monitor efficacy, and rotating therapies or combination treatments may be used to mitigate resistance risks.
Why is programmatic monitoring important?
Mass drug administration programs include surveillance of parasite prevalence and treatment outcomes. This data guides dosing intervals, supplementary treatments, and resistance management strategies.
Warnings, contraindications and interactions
Who should avoid ivermectin?
- Children weighing less than 15 kg unless under specialist advice;
- Pregnant or breastfeeding women without medical supervision;
- Patients with severe hepatic impairment;
- Individuals with known hypersensitivity to ivermectin or excipients;
- People with co-infection of Loa loa (risk of encephalopathy).
Can ivermectin interact with other medicines?
Ivermectin is metabolized primarily by CYP3A4. Concomitant use with strong CYP3A4 inhibitors (e.g., ketoconazole, erythromycin) may increase ivermectin exposure and risk of toxicity. Always inform your prescriber about all medications and supplements.
Why is Loa loa a concern?
In individuals heavily infected with Loa loa, rapid parasite death can lead to encephalopathy. Screening or specialist guidance is recommended for patients who have lived in or traveled through endemic regions.
What about pregnancy and breastfeeding?
Ivermectin is typically avoided in pregnancy unless the benefit outweighs potential risks. Breastfeeding mothers should seek medical advice, as ivermectin is excreted in breast milk.
Additional information about generic Stromectol
What does “generic ivermectin” mean?
A generic product contains the same active ingredient, ivermectin, at the same strength and quality standards as the branded reference (Stromectol). Regulatory approval ensures bioequivalence and comparable therapeutic effect.
Why can generic prices differ?
Factors include manufacturing scale, excipient sourcing, packaging, distributor agreements, and retailer pricing strategies. Competition among generic manufacturers typically drives prices lower.
Where can official medicine information be verified?
Authoritative sources include the MHRA website, the electronic Medicines Compendium (eMC), and patient information leaflets supplied with medicine packs. Always consult qualified healthcare professionals for personalized advice.
Does this information replace professional advice?
No. This page provides general information for patients and caregivers. For tailored medical guidance, speak to our pharmacy team at Markeaton Pharmacy, 126 Kedleston Road, Derby, DE22 1FX, or consult your doctor.