01Is a Stromectol 3 mg online order legal without the parasite name?
Stromectol 3 mg identity card
Stromectol 3 mg is licensed as a human tablet, not as a wellness SKU. A prescription names an organism, a weight, and a mcg/kg. An online cart that only says "ivermectin 3 mg, cheap, no questions" is not following that label. This desk does not fill orders and does not quote prices.
The U.S. indications are narrow. Intestinal strongyloidiasis means nondisseminated Strongyloides stercoralis. Onchocerciasis means Onchocerca volvulus. Other parasitic uses exist in specialist protocols. They are still parasite uses. They are not influenza, COVID-19, or "immune support."
Horse paste, aquarium tubes, and veterinary pour-ons bypass diagnosis, the 3 mg tablet count, and the empty-stomach instruction. The overdose section of the label already lists what happens when people ingest unknown quantities of those formulations: rash, edema, headache, neurologic events.
Weight math for the 150 mcg/kg onchocerciasis lock lives on the dosing note. The molecule page is ivermectin.
02Dying microfilariae can fire Mazzotti reactions and worse
Dying microfilariae can fire Mazzotti-type reactions in onchocerciasis: itch, rash, fever, tender nodes, joint pain. In trials of 963 adults given 100-200 mcg/kg, pruritus worsened in 27.5%, skin involvement in 22.7%, fever in 22.6%, inguinal node tenderness in 13.9%. Mild cases have been handled with antihistamines or aspirin. Postural hypotension has been handled with fluids, recumbency, and sometimes parenteral steroids. Those are clinic tools, not home recipes.
Patients with hyperreactive onchodermatitis (sowda) may react more, especially with edema. Rarely, people who also carry a heavy Loa loa load develop severe or fatal encephalopathy after an effective microfilaricide. Significant exposure to Loa-endemic West or Central Africa means pretreat assessment for loiasis and close follow-up.
Neurotoxicity - somnolence, stupor, coma, confusion, death - has been reported with ivermectin even without onchocerciasis or Loa. The label puts that in Warnings and again in overdose. It is a reason not to improvise viral-kit milligrams.
03Social threads still treat ivermectin 3 mg as a viral kit
Before anyone clicks "order 3 mg"
- Name the organism before the tablet count
- 150 mcg/kg is onchocerciasis, not a universal kit
- Livestock formulations are overdose case reports waiting to happen
- Warfarin users: rare INR rises are on the post-marketing list
Social threads still treat ivermectin as a COVID-19 cure. The U.S. tablet label does not. Major public-health bodies rejected routine prevention or treatment use outside trials. Say it without a hedge: Stromectol 3 mg is not a COVID cure.
Tapeworms, flukes, and many soil-transmitted helminths need other drugs. "Worms" is not a diagnosis. Stool studies, serology, travel history, and skin findings come before anyone counts 3 mg tablets at 150 mcg/kg.
A cheap online 3 mg blister that never asked for a parasite name is a product, not a regimen. Licensed clinics and travel desks exist for a reason. This site will not invent a cash price to make that cart look reasonable.
Ivermectin binds glutamate-gated chloride channels in invertebrate nerve and muscle. Parasites paralyze. Mammals lack those channels, and the drug does not readily cross a healthy blood-brain barrier. That selectivity is why a labeled 3 mg human tablet is not a livestock paste, and why breaking the barrier with huge veterinary doses shows up in overdose reports as confusion and coma.
Post-marketing lists also include hypotension, worsening asthma, rare Stevens-Johnson syndrome or toxic epidermal necrolysis, seizures, hepatitis, and enzyme or bilirubin rises. Conjunctival hemorrhage has been reported in onchocerciasis. Those are reasons to keep 3 mg on a named-parasite chart, not in a viral drawer.
04Adult Onchocerca worms survive; stools must be repeated
Adult Onchocerca volvulus worms survive a 150 mcg/kg pulse. Tell patients that retreatment is expected, not a sign the 3 mg tablets "failed." Skin and eye follow-up belong on the calendar the infectious-disease or program team sets.
Strongyloides patients need the three-month stool series. Immunocompromised hosts, including people with HIV, may need repeated courses at about 2-week intervals, and cure may be impossible. Monthly suppressive dosing is sometimes used; the label says adequate trials have not defined the optimal regimen.
Pregnancy: animal data showed cleft palate (and clubbed forepaws in rabbits) at or near maternotoxic doses. There are no adequate controlled studies in pregnant women. The label says ivermectin should not be used in pregnancy because safety is not established. Breast milk carries low concentrations; treat a nursing mother only when delay is worse for her than the possible risk to the infant.
Comparative onchocerciasis work used diethylcarbamazine citrate as the older microfilaricide. Mazzotti and eye reactions were already known from that class. Stromectol inherited the warning because dying microfilariae, not a virus, drive the inflammatory burst. Pretend-COVID dosing still borrows that burst if the patient silently carries Onchocerca or Loa.
Hypersensitivity to any tablet component is the listed contraindication. The 3 mg tablet also contains microcrystalline cellulose, pregelatinized starch, magnesium stearate, butylated hydroxyanisole, and anhydrous citric acid. Allergy to "ivermectin" in a story that actually names a dye from another country's blister still needs a pharmacist, not a reorder button.
05Intestinal Strongyloides uses 200 mcg/kg, not the 150 lock
| Labeled job | mcg/kg | 3 mg role |
|---|---|---|
| Onchocerciasis | 150 | This site's SERP lock |
| Intestinal strongyloidiasis | 200 | Other labeled row |
| Adult Onchocerca | None | Drug does not kill adults |
| COVID-19 | Not an indication | Not a cure |
Intestinal Strongyloides stercoralis uses about 200 mcg/kg as a single oral dose of 3 mg tablets, still on an empty stomach with water. Extra doses are usually unnecessary. Follow-up stool exams are not optional.
Comparative studies defined cure as no larvae on at least two stools 3 to 4 weeks after therapy. In those programs, a single 170-200 mcg/kg ivermectin dose beat albendazole 200 mg twice daily for 3 days (one international set showed 92% versus 55% in a small evaluable group; pooled figures in the label run 83% versus 45% against albendazole in a larger set). Versus thiabendazole 25 mg/kg twice daily for 3 days, single-dose 200 mcg/kg looked similarly effective and better tolerated.
A French study in a non-endemic area saw larvae return as late as 106 days. The label therefore wants at least three stool exams over the three months after treatment, using concentration methods such as a Baermann apparatus, because larvae per gram can be very low. Recrudescence means retreat.
Activity against Strongyloides is limited to intestinal stages. Disseminated or hyperinfection disease is a different, more dangerous chart. Do not flatten it into "I ordered 3 mg online for worms."
06River blindness dosing is 150 mcg/kg of 3 mg tablets
River blindness dosing is 150 mcg of ivermectin per kg as a single oral dose. Patients take the 3 mg tablets on an empty stomach with water. Mass distribution campaigns most often repeat at 12 months. For an individual patient, retreatment can be considered as soon as 3 months.
A double-blind study of moderate-to-severe onchocercal infection found an 83.2% drop in skin microfilariae geometric mean at day 3 after 150 mcg/kg, and a 99.5% drop at 3 months. A greater than 90% reduction held as long as 12 months after that single dose. That is microfilariae in skin, not a virus titer.
Stromectol has no activity against adult Onchocerca volvulus. Adults live in subcutaneous nodules. Nodulectomy is sometimes part of management because it removes the factory that makes more microfilariae. Repeat follow-up is usual. One cheap 3 mg strip does not retire the adult worms.
Some patients show more microfilariae in the anterior chamber of the eye at day 3, then better counts than placebo at 3 and 6 months. Eye follow-up belongs to the treating team, not to a mail-order FAQ.
Pediatric onchocerciasis data on the label cover ages 6 to 13 (n=103; 17-41 kg) and showed similar skin microfilariae drops for up to 12 months. That is not a license to dose a toddler. The 15 kg floor still holds. Ophthalmology still belongs on the follow-up, because day-3 eye counts can look worse before they look better.
Headache (22.3%) and myalgia (19.7%) were common overall in the adult oncho trials regardless of causality. Drug-related facial edema (1.2%), peripheral edema (3.2%), orthostatic hypotension (1.1%), and tachycardia (3.5%) sat on the attributed list. A cheap 3 mg reorder because "I still ache" at day two is usually inflammation, not an extra 150 mcg/kg.
07Name the organism before anyone counts 3 mg tablets
Name the organism before anyone multiplies kg by 150 mcg. Stromectol 3 mg is a parasite tablet with two U.S. indications and a lot of internet cosplay.
Take the labeled empty-stomach dose with water. Plan stools or onchocerciasis follow-up. Leave veterinary paste on the farm. See weight dosing for the 3 mg count and the ivermectin brief for the rest of the card.
If the only history is "I heard it works for viruses," the answer is no.
How to cite this page - Vancouver style
Halo Medix Lens Desk. Stromectol 3 mg treats labeled worms, not viruses [Internet]. Montreal: Halo Medix; 21 August 2026 [cited 2026 Aug 21]. Available from: https://halomedix.com/notes/stromectol-label-parasites/
Sources and how we reviewed this card
- FDA / DailyMed Stromectol (ivermectin) 3 mg tablets - Indications, Dosage Tables 1-2, Clinical Studies, Warnings
- Merck Stromectol U.S. PI, revised 09/2024 - 150 mcg/kg onchocerciasis, 200 mcg/kg strongyloidiasis
Method in brief: clip from primary sources, cross against the current FDA label, lens read by Dr. Camille Rousseau, MD, then file with a dated review. Full walk-through on the method page and editorial standards.