2 year expired tylosin - still good?

[Sorensen]

Hi all. Just wanted some advice on if I could still safely use tylan powder that expired in 2022 - would be using it to treat chickens.

It’s been safely and securely stored in a sealed jar - but I do believe the smell has changed (for whatever that’s worth lol)
I would try to buy new powder but it is EXTREMELY difficult to get it where I live.

I wasn’t sure what section to put this question is - I hope it’s not a bother

 

[TillyPeeps]

I don't know if it's good or not. Maybe someone more knowledgeable can help. But if you want to get new ones, even though feed stores don't carry antibiotics for chickens anymore, you still can buy antibiotics for pigeons online.

 

[dct10]

antibiotics degrade over time so I wouldn't use it. Most expiration dates are marketing schemes but not with antibiotics.