Pages on this site explain labelled tablet strengths for study. They are not a prescription, a pharmacy counter, or personal medical advice. Full disclaimer
Onchocerciasis dosing uses 150 mcg/kg and a 3 mg tablet-count table
5 min readReviewed 21 August 2026. Updated
At a glance
Page typeNote
Lock3 mg + 150 mcg/kg
65–84 kg4 tablets
ReviewerCamille Rousseau, MD
The recommended dosage of STROMECTOL for onchocerciasis is a single oral dose designed to provide approximately 150 mcg/kg. On the U.S. table, 65 to 84 kg is four 3 mg tablets. Strongyloides uses 200 mcg/kg and a different table.
01The 150 mcg/kg onchocerciasis table
Stromectol onchocerciasis tablet counts from the US PI (Table 2).
Body weight (kg)
3 mg tablets at ~150 mcg/kg
15-25
1
26-44
2
45-64
3
65-84
4
>=85
calculate 150 mcg/kg
The recommended dosage of STROMECTOL for onchocerciasis is a single oral dose designed to provide approximately 150 mcg/kg. Take STROMECTOL on an empty stomach with water.
On the U.S. table, 15 to 25 kg is one 3 mg tablet. 26 to 44 kg is two tablets. 45 to 64 kg is three tablets. 65 to 84 kg is four tablets. At 85 kg and above, calculate 150 mcg/kg.
02The 200 mcg/kg strongyloides table
The recommended dosage of STROMECTOL for strongyloidiasis is a single oral dose designed to provide approximately 200 mcg/kg. On that table, 15 to 24 kg is one 3 mg tablet; 25 to 35 kg two; 36 to 50 kg three; 51 to 65 kg four; 66 to 79 kg five; 80 kg and above calculate 200 mcg/kg.
A 70 kg adult on the strongyloides row is five tablets. A 70 kg adult on the onchocerciasis row is four tablets.
03How the course is taken
The labelled course is a single oral dose. Follow-up stool examinations are recommended after the strongyloides indication. Repeat onchocerciasis doses sit on a later calendar when a new course is written.
How to cite this page - Vancouver style
Halo Medix Medicines Reference. Onchocerciasis dosing uses 150 mcg/kg and a 3 mg tablet-count table [Internet]. Montreal: Halo Medix; 21 August 2026 [cited 2026 Aug 21]. Available from: https://halomedix.com/notes/stromectol-weight-dosing/
('Readers around Montreal asked how many 3 mg tablets sit on the 150 mcg/kg table. ', 'Answers follow the U.S. Stromectol label.')
Olivier Tremblay, Villeray asks
I weigh 70 kg. How many 3 mg tablets for onchocerciasis?
Reply from our reviewer
On the U.S. onchocerciasis table, 65 to 84 kg is four 3 mg tablets. A 70 kg adult sits in that band. The recommended dosage of STROMECTOL for onchocerciasis is a single oral dose designed to provide approximately 150 mcg/kg. Take STROMECTOL on an empty stomach with water.
Chloé Bélanger, Saint-Henri asks
What does the table say at 90 kg?
Reply from our reviewer
At 85 kg and above, the onchocerciasis table says calculate 150 mcg/kg. The prescriber names the tablet count. Take STROMECTOL on an empty stomach with water. The labelled course is a single oral dose.
Rachid Benyamina, Saint-Michel asks
Can I split the four-tablet onchocerciasis count across two meals?
Reply from our reviewer
The labelled course is a single oral dose. Take STROMECTOL on an empty stomach with water. On the U.S. table, 65 to 84 kg is four 3 mg tablets for onchocerciasis. The recommended dosage is approximately 150 mcg/kg.
Hélène Paquette, Lachine asks
Why does this page lock 150 mcg/kg if strongyloides is 200?
Reply from our reviewer
The recommended dosage of STROMECTOL for strongyloidiasis is a single oral dose designed to provide approximately 200 mcg/kg. Follow-up stool examinations are recommended after the strongyloides indication.
Guillaume Roy, Rosemont asks
What does the onchocerciasis table say at 50 kg?
Reply from our reviewer
On the U.S. onchocerciasis table, 45 to 64 kg is three 3 mg tablets. A 50 kg adult sits in that band. The recommended dosage of STROMECTOL for onchocerciasis is a single oral dose designed to provide approximately 150 mcg/kg. Take STROMECTOL on an empty stomach with water.
Fatima Côté, Saint-Léonard asks
How is the 3 mg tablet described?
Reply from our reviewer
Tablets STROMECTOL 3 mg are white, round, flat, bevel-edged tablets coded MSD on one side and 32 on the other side. Each tablet contains 3 mg of ivermectin. Store at temperatures below 30 C (86 F). Take STROMECTOL on an empty stomach with water. The labelled course is a single oral dose.
Benoit El-Amin, Anjou asks
What does the strongyloides table say at 70 kg?
Reply from our reviewer
On the U.S. strongyloides table, 66 to 79 kg is five 3 mg tablets. A 70 kg adult sits in that band. The recommended dosage of STROMECTOL for strongyloidiasis is a single oral dose designed to provide approximately 200 mcg/kg. A 70 kg adult on the onchocerciasis table is four tablets at approximately 150 mcg/kg. Follow-up stool examinations are recommended after the strongyloides indication.
Mélanie Fortin, Verdun asks
What does the onchocerciasis table say at 30 kg?
Reply from our reviewer
On the U.S. onchocerciasis table, 26 to 44 kg is two 3 mg tablets. A 30 kg patient sits in that band. The recommended dosage of STROMECTOL for onchocerciasis is a single oral dose designed to provide approximately 150 mcg/kg. Take STROMECTOL on an empty stomach with water. Safety and effectiveness are not established under 15 kg.
Isabelle Roy, Westmount asks
What inactive ingredients sit in a 3 mg tablet?
Reply from our reviewer
STROMECTOL is available in 3 mg tablets containing microcrystalline cellulose, pregelatinized starch, magnesium stearate, butylated hydroxyanisole, and citric acid powder (anhydrous). Tablets STROMECTOL 3 mg are white, round, flat, bevel-edged tablets coded MSD on one side and 32 on the other side. Store at temperatures below 30 C (86 F). Take STROMECTOL on an empty stomach with water.
