[header] How to use ivermectin [title] Use ivermectin against certain worms. [step] Ivermectin is the drug of choice against several different kinds of worms. The two most common worms treated by this medication are strongyloides stercoralis and onchocerca volvulus. 
[substeps] Strongyloides stercoralis: this worm is prevalent in northern parts of the united states and canada. It is found on soil and prefers warm humid conditions.