It's a really good idea to have thiamin on hand. It was after vet clinic hours on a Saturday night when my goat got real sick. The thiamin was crucial in saving her. I know the importance of having medications on hand since I live 30 miles from my vet, but learned this after having to call friends and neighbors when I first started breeding goats and one got sick. I read on these forums where a person has a sick goat and then has a hard time getting what they need in a timely manner. It's so much easier to deal with problems if I have the stuff handy.