Jumping in late because I missed this conversation earlier. When Banamine was first released for cattle, it was labeled for IM or IV administration. They ended up with too many cases of clostridial myositis (blackleg) at the IM injection sites, and had to change the label or pull the product from the market. SQ is safer than IM (as you see with Resflor), but if they put that on the label they would have to significantly extend the withholding times to account for slower absorption. That's a big negative when trying to sell product to dairy producers in particular.Yes it does. Have often wondered about that. But the farmers and vets don't make the rules/laws, just expected to comply with them.