How many 3 mg tablets is 200 mcg per kilogram?
About 200 mcg/kg once — 0.2 mg/kg — is the usual strongyloidiasis target, counted as 3 mg tablets from 15 kg up. From 15–24 kg you count one tablet. The count steps up by one tablet: two at 25–35 kg (6 mg), three at 36–50 kg (9 mg), four at 51–65 kg (12 mg), five at 66–79 kg (15 mg). At 80 kg or more, Mayo Clinic and Medical News Today say to calculate 200 mcg/kg. Drugs.com prints the same milligram totals. Scabies has no course printed here. If a clinician uses oral ivermectin for mites outside the tablet approvals, the organism map is on the ivermectin brief.
Strongyloidiasis tablet count at 200 mcg/kg
| Body weight | 3 mg tablets |
|---|---|
| 15–24 kg | 1 tablet (3 mg) |
| 25–35 kg | 2 tablets (6 mg) |
| 36–50 kg | 3 tablets (9 mg) |
| 51–65 kg | 4 tablets (12 mg) |
| 66–79 kg | 5 tablets (15 mg) |
| 80 kg or more | calculate 200 mcg/kg |
Onchocerciasis tablet count at 150 mcg/kg
| Body weight | 3 mg tablets |
|---|---|
| 15–25 kg | 1 tablet (3 mg) |
| 26–44 kg | 2 tablets (6 mg) |
| 45–64 kg | 3 tablets (9 mg) |
| 65–84 kg | 4 tablets (12 mg) |
| 85 kg or more | calculate 150 mcg/kg |
River blindness uses 150 mcg/kg and different cuts
Onchocerciasis aims for about 150 mcg/kg — 0.15 mg/kg — once, on the second ladder. If you weigh 40 kg, you count three 3 mg tablets for strongyloidiasis (36–50 kg) and two 3 mg tablets for onchocerciasis (26–44 kg). Mayo says another river-blindness dose may come every 3 to 12 months, and care can include retreatment and surgery aimed at the adult parasite. Medical News Today says there is no set interval: retreatment as soon as 3 months, with 12-month gaps also used. The prescriber sets the repeat. Itch coming back is a reason to call, not a signal to swallow the next strip at home.
Extra doses for strongyloidiasis are usually not needed when stool follow-up is clean, per the Drugs.com monograph. How long until it starts to work is a range on that page, not one clock: killing can begin within hours, and relief or clearance may take days to weeks, often with a noticeable change in 1 to 7 days. Medical News Today says a weakened immune system, including HIV, may need repeated doses, and sometimes monthly suppressive therapy, with the clinician watching the course. Don't start a second course from these ladders on your own.
When does Loa loa stop a river-blindness dose?
A heavy Loa loa co-infection is a reason to hold an oncho dose before anyone counts tablets. Stromectol's prescribing information warns of encephalopathy after ivermectin when onchocerciasis and heavy Loa loa meet. The prescriber has to clear that warning before the 150 mcg/kg rows. The strongyloidiasis ladder still stands when Loa loa is not part of the picture.
Why horse paste is not a human 3 mg dose
Humans should not take animal ivermectin as a substitute for the 3 mg chart. FDA's COVID consumer update reports hospitalizations after people took animal pour-on, injectable, paste, chewable, or drench products. Same ingredient name on a livestock tube isn't the 200 mcg/kg tablet count.
You'll see a paste syringe next to a blister of 3 mg chips. The tick marks on the syringe were drawn for a large animal. Reading them as human rows is how an overdose picture starts. FDA's consumer update lists nausea, low blood pressure, dizziness, ataxia (trouble with balance), seizures, and coma after too much ivermectin. Keep the paste in the barn. Count human tablets from the kilogram ladders above.
How should a person take the tablet?
Three steps close most strongyloides or onchocerciasis courses. Weigh the person. Count the kilogram row for the indication you were given. Swallow the chips with water on an empty stomach.
Cleveland Clinic's window is an empty stomach, at least 30 min before food and 2 hours after. Drugs.com states a different fast: at least 1 hour before a meal or 2 hours after. WebMD says food can increase exposure and does not say a fatty meal doubles it. If a high-fat meal already happened, do not stack extra tablets to catch up — wait for the fasting window your prescriber is using, or ask before you redose. Mayo, Medical News Today, Drugs.com, WebMD, and Cleveland Clinic do not print a half-life, a Tmax, or a fatty-meal fold. Mayo, Medical News Today, and Drugs.com share the empty-stomach-with-water rule unless that prescriber sets another plan. Mayo's missed-dose line: take it when remembered unless the next scheduled dose is close, and do not double. Most strongyloides courses are a single dose, so a missed dose is usually a clinician-scheduled repeat.
What is ivermectin used for — and what has no approved dose?
FDA-approved oral uses on the Mayo Clinic, Drugs.com, and Cleveland Clinic pages are intestinal strongyloidiasis and onchocerciasis. Cleveland Clinic states the tablets won't treat colds, flu, bacteria, or viruses. Drugs.com describes how it works in one line: the drug works by interfering with parasite nerve and muscle function through glutamate-gated chloride channels, paralyzing the organism. Which other bugs belong on a clinic card lives on the ivermectin organism brief. Soolantra cream (rosacea) and Sklice lotion (head lice) are other products. They aren't this 3 mg chart.
COVID-19 has no authorized dose
There isn't one. FDA hasn't authorized or approved ivermectin to prevent or treat COVID-19 in humans or animals — that's the consumer-update line Medical News Today and Drugs.com also carry. Those pages say the trial data they cite do not make the tablet a virus protocol. Don't carry ACTIV-6 or TOGETHER milligram arms onto these ladders.
What is Stromectol?
Stromectol is a brand of the same oral ivermectin tablet. Drugs.com (updated 13 November 2026) lists Merck Sharp & Dohme for Stromectol and several manufacturers for generics. Same two approved uses. Same weight charts. Brand versus generic is who stamps the chip, not a second dose language.
Itch the next day, or too much drug?
After a river-blindness dose, itch, rash, fever, dizziness, a fast pulse, or eye and eyelid irritation can be the Mazzotti reaction Mayo names. Call the prescriber for that picture. It is not the same picture as collapse after a veterinary dose. WebMD lists sluggishness, confusion, trouble breathing, nausea, and vomiting after too much drug. Medical News Today adds diarrhea, low blood pressure, and seizures, and says severe symptoms need emergency care — 911, or Poison Control at 1-800-222-1222. Mayo also flags bronchial asthma: use with caution. Common effects on WebMD and Drugs.com include diarrhea, dizziness, and mild itch. An antihistamine is not the treatment plan for either picture.
Who should not start from the weight chart?
Pregnancy and breastfeeding
In pregnancy, the Drugs.com monograph says ivermectin should not be used, citing animal data. WebMD notes the drug passes into milk and leaves the call with the provider — breastfeeding is not a silent yes. Mayo breastfeeding line weighs benefits and risks with the clinician. The 200 mcg/kg strongyloides rows are not a pregnancy override.
Children under 15 kg
Mayo Clinic: use and dose for children under 15 kg must be determined by the doctor. The published bands in Mayo, Medical News Today, and Drugs.com start at 15 kg. Do not quarter a livestock tube to invent a pediatric chip.
Do not start pregnancy or a child under 15 kg from these kilogram rows. Those decisions sit with the clinician. Age-related liver, kidney, or heart limits may also change the plan — one caution Mayo names, not a separate home chart.
Where people look to buy ivermectin
Oral tablets need a prescription and a licensed pharmacy. We do not sell them. A site that offers tablets with no script fails the check, not a bargain test. The Drugs.com over-the-counter answer for ivermectin points at Sklice lotion for head lice — a different product from the 3 mg oral chart. Match any online pharmacy against the Pharmacy Online USA BeSafeRx note before you pay.
FAQ
What is ivermectin used for?
Oral tablets are approved for intestinal strongyloidiasis and onchocerciasis. They do not treat viruses. Other parasites and mites belong on the organism brief.
What is Stromectol used for?
Stromectol is Merck's brand of the same oral ivermectin tablet. Same approved worms. Same 3 mg counting.
How much ivermectin for humans?
Use the two ladders above, each with its own cuts. Strongyloidiasis ≈ 200 mcg/kg once. Onchocerciasis ≈ 150 mcg/kg once. A weight on one row of the first ladder can sit on a different row of the second — at 40 kg that is three tablets versus two. Under 15 kg and pregnancy stay off both ladders.
Can humans take horse paste instead?
No. FDA reports hospitalizations after animal pour-on, injectable, paste, chewable, and drench products. Human chips only.
Is ivermectin over the counter?
Oral tablets need a prescription. Sklice lotion is the OTC ivermectin product Drugs.com names for head lice. It is not the oral weight chart.
Is ivermectin FDA approved for COVID?
No. FDA has not authorized or approved it to prevent or treat COVID-19 in humans or animals.
Does ivermectin treat cancer?
The American Cancer Society (21 May 2026) states it is not approved for any cancer in people or animals.
Who should not start from the chart?
Pregnancy hold. Children under 15 kg need a clinician. Loa loa co-infection can stop a river-blindness dose until that encephalopathy risk is cleared.
What drugs cannot be taken with ivermectin?
Tell your clinician about warfarin (Coumadin, Jantoven) and other medicines on your list — Mayo and WebMD both flag the warfarin mix. Do not invent a home INR recheck calendar from this page. Empty-stomach timing is already in the how-to room.
Does ivermectin kill tapeworms?
That is not the approved worm pair here. Organism scope sits on the brief.
Is there a scabies tablet dose on this page?
No printed scabies course. If oral ivermectin is used for mites outside the tablet approvals, ask the clinician and use the organism brief for scope — not a second weight invention here.
Next step
Read which organisms earn the tablet on the ivermectin brief, then match any online pharmacy on the Pharmacy Online USA note before paying. Existing reviewer page: Dr. Noor Haddad.
Formulary note · Sources checked: oral ivermectin at Mayo Clinic, Medical News Today dosage charts, the Drugs.com monograph, FDA's COVID consumer update, the American Cancer Society note from 21 May 2026, and Cleveland Clinic's tablets page.
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