Can’t find what it is, but many years a 6 cent sheep pill was approved for human use for some rare but deadly disease. However the price went up to thousands

Can’t find what it is, but many years a 6 cent sheep pill was approved for human use for some rare but deadly disease. However the price went up to thousands per month. So of course people were using the sheep pill instead. Family were not happy it. But if you can’t afford human version, well.... Was a bunch of news cast on it at the time.