Ivermectin is used to treat worms that live in the human bowel such as roundworms. Ivermectin kills worms by binding to the nerve and muscle cells of parasites, resulting in their death.
It's also used to treat scabies when other treatments such as permethrin lotion or cream isn't suitable, isn't available or hasn't worked well. Ivermectin is also used to treat crusted scabies in combination with permethrin.
In Aotearoa New Zealand ivermectin is only available on a prescription from a prescriber.
Read more about scabies.