the ivermectin horse paste with shipping is about $10 from valletvet(dot)com or about $3 tube at tractor supply. it's worth every penny.. especially if you're going to add with an albendazole protocol.
i only had bad side effects with my first dose... some people have a hard time with it, but it's relatively safe.
there are lot of posts about people here injecting it, but that's too complicated. it has to be injected into a fatty part, under the skin... its too much trouble!