eli5 Why can’t we just take a pill to deal with blood sucking pest like lice, bedbugs etc

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Like it’s their food. Just poison the supplies and they die out. Of course I don’t think it’ll take much, and we humans should be fine with it. It just makes too much sense

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6 Answers

Anonymous 0 Comments

Scalability is one reason. It would take a **lot** of medicine to dose everyone in the world.

Also, a lot of parasites can survive off more than one type of host. Bedbugs, for example prefer humans but can survive just fine off dogs and cats. You’d have to dose all of those as well, including the feral ones, to be sure of eradicating bedbugs

Anonymous 0 Comments

You want to run your blood into poison? With a ton of research, maybe we could develop something that turns your blood poisonous to those bugs but not to your body, sure, but what would be the point of investing all that time/money (while conducting potentially unethical experiments) when we already have a way to deal with those bugs?

Anonymous 0 Comments

Because we don’t know how to do that.

Plenty of research has been done into killing mosquitos. Did you know mosquitos are the deadliest species on Earth (aside from humans)?

Anonymous 0 Comments

Oral ivermectin actually does work against lice. Generally though, topical medications or mechanically killing bugs is safer and more effective. It’s also difficult to make drugs that harm bugs and not humans in part because we’re more similar to bugs (an animal) than we are to say bacteria.

Anonymous 0 Comments

Ok, but how would this pill would work? The pill would have to deliver into your body something that can kill insects in tiny amounts of blood without being toxic to us at all. You seem to think it’s trivially easy find such a compound which is not at all correct. Also, what’s the point? We already have effective means of eliminating bed bugs and lice.

Anonymous 0 Comments

I’ve heard garlic pills work for fleas. They make you reek like garlic but that’s up to whoever needs to get rid of the fleas to decide if it’s worth it or not.