What I know about isn't exactly damage, but Ivermectin uses a metabolic path through the liver that other drugs and herbs use too, and if a person is taking these other things, all of them become less useful or available because 5here is a limit to how much processing power is available. Statins is one whole class, many people take them. Modafinil is another, but not very common. The sensible thing to do is use an interaction checker. Many available, like this: https://www.medicine.com/interaction-checker
What I know about isn't exactly damage, but Ivermectin uses a metabolic path through the liver that other drugs and herbs use too, and if a person is taking these other things, all of them become less useful or available because 5here is a limit to how much processing power is available. Statins is one whole class, many people take them. Modafinil is another, but not very common. The sensible thing to do is use an interaction checker. Many available, like this: https://www.medicine.com/interaction-checker