Ivermectin Dosage Chart for Humans by Weight
The ivermectin dosage chart for humans is the most essential reference tool for anyone taking this medication. With approximately 12,100 monthly searches in the US, this chart addresses the most critical safety question: "How much ivermectin should I take based on my weight?"
Ivermectin is dosed at 200 micrograms per kilogram of body weight (200 mcg/kg or 0.2 mg/kg). Unlike many medications that use flat doses, ivermectin must be precisely calibrated to body weight for both safety and efficacy. The chart below converts weight ranges directly into tablet combinations, eliminating guesswork.
| Weight (lbs) | Weight (kg) | Dose (mg) | Tablet Combination |
|---|---|---|---|
| 33–53 lbs | 15–24 kg | 3 mg | One 3mg tablet |
| 55–77 lbs | 25–35 kg | 6 mg | One 6mg tablet or two 3mg |
| 79–99 lbs | 36–45 kg | 9 mg | Three 3mg tablets |
| 100–110 lbs | 46–50 kg | 10 mg | One 6mg + one 3mg (approximate) |
| 112–132 lbs | 51–60 kg | 12 mg | One 12mg tablet |
| 134–143 lbs | 61–65 kg | 13 mg | One 12mg tablet (rounded) |
| 145–154 lbs | 66–70 kg | 14 mg | One 12mg + nearest available |
| 156–165 lbs | 71–75 kg | 15 mg | One 12mg + one 3mg tablet |
| 167–176 lbs | 76–80 kg | 16 mg | One 12mg + one 3mg tablet |
| 178–198 lbs | 81–90 kg | 18 mg | One 12mg + one 6mg tablet |
| 200–220 lbs | 91–100 kg | 20 mg | One 12mg + two 3mg + partially scored |
| 222–242 lbs | 101–110 kg | 22 mg | One 12mg + one 6mg + one 3mg |
| 244–264 lbs | 111–120 kg | 24 mg | Two 12mg tablets |
Important: Use This Chart as a Reference Only
This dosage chart is for educational purposes. Your healthcare provider may prescribe a different dose based on your specific condition, medical history, kidney/liver function, and concurrent medications. Never adjust your prescribed dose without consulting your provider. Children under 15 kg should not take ivermectin.
Ivermectin Paste Dosage Chart for Humans: Why You Should Never Use It
"Ivermectin paste dosage chart for humans" generates approximately 170 monthly searches — a concerning indicator that some individuals still consider using veterinary paste products. This section explains why no legitimate paste dosage chart for humans exists and why using veterinary products is dangerous.
Horse ivermectin paste (1.87% concentration) is designed for animals weighing 1,000–1,500 pounds. The dial-based dispensing mechanism dispenses in increments calibrated for equine body weights. Attempting to extract a precise 15mg dose (for a 75 kg human) from a tube containing 113.7mg requires dispensing approximately 13% of the total — an impossibly precise measurement using the crude equine syringe.
- Concentration mismatch: 18.7 mg/gram paste vs. 3-12mg per precisely manufactured tablet
- Inactive ingredients: Apple and mint flavorings, polymers, and preservatives tested only for equine safety
- FDA warning: The FDA explicitly advises against using animal ivermectin products for humans
- Cost comparison: Pharmaceutical tablets cost $1-$7 with discount cards — comparable to paste prices
Use only pharmaceutical-grade tablets manufactured for human consumption. See our ivermectin pills guide for verified human-grade sources.
Liquid Ivermectin Dosage Chart for Humans
"Liquid ivermectin dosage chart for humans" receives approximately 170 monthly searches. Pharmaceutical-grade liquid ivermectin for human use follows the same 200 mcg/kg dosing as tablets but requires different measurement methods.
Critical Distinction
Only pharmaceutical-grade oral solutions formulated for humans are appropriate. Veterinary liquid ivermectin (cattle pour-on, swine injection) has different concentrations and is NOT safe for human use.
If your healthcare provider has prescribed liquid ivermectin, the concentration will determine the volume you need. The most common human-grade concentration is 1 mg/mL:
| Weight (lbs) | Weight (kg) | Dose (mg) | Volume at 1mg/mL |
|---|---|---|---|
| 110 lbs | 50 kg | 10 mg | 10 mL |
| 132 lbs | 60 kg | 12 mg | 12 mL |
| 154 lbs | 70 kg | 14 mg | 14 mL |
| 176 lbs | 80 kg | 16 mg | 16 mL |
| 198 lbs | 90 kg | 18 mg | 18 mL |
| 220 lbs | 100 kg | 20 mg | 20 mL |
Always use a calibrated oral syringe or measuring cup — kitchen spoons are not accurate enough for pharmaceutical dosing. For a comprehensive guide, see our upcoming liquid ivermectin dosage guide.
Doctor B Ivermectin 12mg — 90 Capsules
- GMP-Certified Manufacturing
- Third-Party Lab Tested
- 12mg Per Capsule
- 90 Capsules Per Bottle
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12mg matches the chart dose for adults weighing 51-65 kg (112-143 lbs).
Printable Ivermectin Dosage Chart
Many patients and healthcare providers search for a printable ivermectin dosage chart they can keep for quick reference. The comprehensive table in Section 1 above serves as your printable reference. To print:
- Press Ctrl+P (Windows) or Cmd+P (Mac)
- Select "Save as PDF" as the destination
- Check "Background graphics" in print settings for table styling
- Save or print the document for your records
Keep a printed copy with your medication for easy reference. Share with your healthcare provider at your next appointment to confirm your correct dose.
Ivermectin Dosage Chart for Scabies
Scabies treatment with ivermectin uses the same 200 mcg/kg dose but follows a specific multi-dose schedule. The ivermectin dosage chart for scabies adds timing information critical for treatment success.
| Body Weight | Dose per Administration | Day 1 | Day 8-10 | Total Treatment |
|---|---|---|---|---|
| 50 kg / 110 lbs | 10 mg | 10 mg | 10 mg | 20 mg total |
| 60 kg / 132 lbs | 12 mg | 12 mg | 12 mg | 24 mg total |
| 70 kg / 154 lbs | 14 mg | 14 mg | 14 mg | 28 mg total |
| 80 kg / 176 lbs | 16 mg | 16 mg | 16 mg | 32 mg total |
| 90 kg / 198 lbs | 18 mg | 18 mg | 18 mg | 36 mg total |
The two-dose schedule is essential because ivermectin kills adult mites but does not destroy eggs. Eggs hatch over 8-10 days, so the second dose targets newly hatched mites before they can reproduce. For severe crusted scabies, additional doses on Days 2, 9, and 15 may be required under medical supervision. For the complete scabies treatment guide, see our upcoming ivermectin for scabies page.
Ivermectin Dosage Chart for Dogs
"Ivermectin dosage chart for dogs" generates approximately 720 monthly searches. While this site focuses on human-use ivermectin, understanding veterinary dosing helps clarify why animal products should never be used by humans — the doses are dramatically different.
| Use | Dog Dose | Human Dose | Difference |
|---|---|---|---|
| Heartworm prevention | 6-12 mcg/kg | 200 mcg/kg | Human dose is 17-33× higher |
| Mange (demodectic) | 300-600 mcg/kg | 200 mcg/kg | Dog dose is 1.5-3× higher |
| Intestinal parasites | 200 mcg/kg | 200 mcg/kg | Similar base dose |
MDR1 Gene Warning for Dog Owners
Certain dog breeds (Collies, Australian Shepherds, Shetland Sheepdogs, and related breeds) carry genetic mutations in the MDR1 gene that make them extremely sensitive to ivermectin. Even standard doses can cause fatal neurotoxicity in these breeds. Always consult your veterinarian before giving ivermectin to any dog.
How to Use the Dosage Chart: Step-by-Step Calculator
If your weight falls between chart entries or you prefer to calculate precisely, follow these three steps:
- Step 1: Convert your weight to kilograms
If you know your weight in pounds, divide by 2.2. Example: 185 lbs ÷ 2.2 = 84.1 kg
- Step 2: Multiply by 0.2 to get your dose in milligrams
84.1 kg × 0.2 mg/kg = 16.8 mg. This is your precise target dose.
- Step 3: Select the nearest tablet combination
Available tablets: 3mg, 6mg, 12mg. For 16.8mg: one 12mg + one 6mg = 18mg (slightly over) or one 12mg + one 3mg = 15mg (slightly under). Your provider will advise which is preferable.
Quick Conversion Table
- 100 lbs = 45.4 kg → 9.1 mg
- 125 lbs = 56.8 kg → 11.4 mg
- 150 lbs = 68.2 kg → 13.6 mg
- 175 lbs = 79.5 kg → 15.9 mg
- 200 lbs = 90.9 kg → 18.2 mg
- 225 lbs = 102.3 kg → 20.5 mg
- 250 lbs = 113.6 kg → 22.7 mg
3mg vs 6mg vs 12mg: Which Tablet Matches Your Weight?
Understanding which tablet strength is right for you simplifies the dosage chart into practical purchasing decisions:
- 3mg tablets: Used primarily for children (15-24 kg) and for fine-tuning adult doses. If your calculated dose is 15mg, you need one 12mg + one 3mg.
- 6mg tablets: Optimal for adolescents (25-35 kg) and as a supplement tablet. Useful when your calculated dose is 18mg (12mg + 6mg).
- 12mg tablets: The standard adult tablet. One tablet provides the correct dose for adults weighing 51-65 kg. Most commonly prescribed.
- 12mg capsules (supplement): Same strength as the pharmaceutical tablet. Available without prescription from authorized retailers.
For most adults, the purchasing decision is simple: buy 12mg tablets/capsules and add 3mg or 6mg tablets if your weight requires a higher dose. For details on purchasing options, see our buying guide.
Dosage Adjustments for Special Populations
Certain patient groups require modified dosing or additional monitoring beyond what the standard dosage chart provides:
- Children under 15 kg: Ivermectin is NOT recommended. Safety and efficacy have not been established in this weight group.
- Elderly patients (65+): Standard dosing applies, but more cautious monitoring for side effects is recommended due to potential age-related liver function decline.
- Pregnant women: Ivermectin is FDA Category C. Use only if the potential benefit justifies the potential risk to the fetus. Discuss with your obstetrician.
- Breastfeeding women: Ivermectin is excreted in breast milk at low concentrations. The WHO considers it compatible with breastfeeding at standard doses, but consult your provider.
- Liver disease: Ivermectin is hepatically metabolized. Patients with significant liver impairment may require monitoring and potential dose adjustment.
- Loa loa co-infection: Patients in endemic areas for Loa loa filariasis require pre-treatment screening. Ivermectin can cause severe encephalopathic reactions in patients with high Loa loa microfilarial loads.
For side effect information relevant to dosing, see our side effects guide.
Frequently Asked Questions About the Ivermectin Dosage Chart
How much ivermectin for humans?
The standard dose is 200 mcg/kg body weight. For a 70 kg (154 lb) adult: 14mg — typically one 12mg tablet. For an 80 kg (176 lb) adult: 16mg — one 12mg + one 3mg tablet. Use the weight-based chart above for your exact dose.
How many mg of ivermectin should I take?
Multiply your weight in kg by 0.2. Common doses: 120 lbs = 11mg, 140 lbs = 13mg, 160 lbs = 15mg, 180 lbs = 16mg, 200 lbs = 18mg, 220 lbs = 20mg. Round to the nearest tablet combination.
What is the correct dose for an 80 kg person?
80 kg × 0.2 = 16mg. Achieve with one 12mg + one 3mg tablet (15mg) or one 12mg + one 6mg tablet (18mg). Your provider will select the best option based on your condition.
How to calculate dosage from the chart?
Find your weight → read the dose → determine tablet combination. If between entries, calculate directly: weight (kg) × 0.2 = dose (mg). Example: 75 kg × 0.2 = 15mg = one 12mg + one 3mg tablet.
Is the dosage chart the same for all conditions?
The base dose (200 mcg/kg) is consistent, but the schedule varies. Strongyloidiasis: single dose. Scabies: two doses on Day 1 and Day 8-10. Onchocerciasis: single dose repeated every 6-12 months. Always follow your condition-specific protocol.
How to convert lbs to kg for dosing?
Divide pounds by 2.2. Examples: 120 lbs = 54.5 kg, 150 lbs = 68.2 kg, 180 lbs = 81.8 kg, 200 lbs = 90.9 kg, 250 lbs = 113.6 kg. Then multiply kg by 0.2 for your dose in mg.