How long does it take your body to metabolize levamisole?

Very short time: Levamisole would be gone in a couple of days, but if you are using Cocaine regularly that is cut with levamisole it can cause a great deal of damage, both reducing the number of white blood cells, causing infections (esp severe mouth sores) and can cause an inflammatory disorder which can cause damage to skin (esp ears, nose cartilage) and even vital organs (vasculitis).