Valbazen & Corid heat exposure question:

Cinnaminute

Songster
Aug 19, 2022
202
379
166
Georgia, USA
Hi!

In summary, I have a bottle of Corid and a bottle of Valbazen (both more than half full) that dealt with some heat exposure back in July and I'm wondering if they're still good. Would they be safe to use for my chickens? Less effective, perhaps? Or actually dangerous?

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As for how long they were exposed and at what temps, I'd like to start by sharing that our house is always about 78-80F during the summer and the Corid & Valbazen seem to be just fine going only a couple degrees over their recommended temp.

However, in July, our fridge for animal products broken down. And one of the ACs in a bedroom went out. I had the chickens supplies in a box in the living room, where it was about 79F. But for comfort, we moved the living room AC into a bedroom. I forgot about the meds... Temps got 81-85F during the day. At night, it was probably within the proper range, I think about 75-78F.

It was like this for about 2-3 weeks before we were able to buy an AC for the living room...

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It's time for my chickens' quarterly deworming & corid treatment and I just realized today that the Corid & Valbazen ended up sitting in above recommended temps. Since our poor fish in the fish tank had water reading 85 during the hottest part of the day, I have no doubt the meds hit that temp too. I'm worried how degraded they are and was wondering if there is any way to tell. I'm less worried about the Corid than the Valbazen. Dewormer seems more fragile to me. But it's frustrating, the bottle is 3/4ths full and still has a year to go. I knew I'd have to throw some of it away. Was just hoping to get the rest of my uses from it before doing so. But my chicken's safety come first. So I figured I'd ask, out of some desperation I can still use it, haha.

Thanks!
 
Ah, I found the safety sheets for the products. Anyone else with the same question, here they are:

For Corid (amprolium) it says to store < 30C, 86F. So yeah, I think it's safe to assume the Corid is likely safe. Perhaps a little less effective, but I imagine it'll be perfectly fine to use as it never did exceed 86F.

https://palsusa.com/wp-content/uploads/sites/6/2024/08/CORID-9.6.pdf

For the Valbazen, I'm still wondering if it's safe or not. Would you all use or toss?

I found this safety sheet: https://www2.zoetis.ca/content/_assets/PDF/SDS/Valbazen-Suspension-Canadian-English-SDS.pdf which says: "Store in a well-ventilated place. @ 15-30C (59-86F)"

And this one:
https://www.zoetisus.com/content/_assets/docs/vmips/safety-data-sheets/valbazen.pdf that obviously says to store as directed by product packaging.
 
Last edited:
Ah, I found the safety sheets for the products. Anyone else with the same question, here they are:

For Corid (amprolium) it says to store < 30C, 86F. So yeah, I think it's safe to assume the Corid is likely safe. Perhaps a little less effective, but I imagine it'll be perfectly fine to use as it never did exceed 86F.

https://palsusa.com/wp-content/uploads/sites/6/2024/08/CORID-9.6.pdf

For the Valbazen, I'm still wondering if it's safe or not. Would you all use or toss?

I found this safety sheet: https://www2.zoetis.ca/content/_assets/PDF/SDS/Valbazen-Suspension-Canadian-English-SDS.pdf which says: "Store in a well-ventilated place. @ 15-30C (59-86F)"

And this one:
https://www.zoetisus.com/content/_assets/docs/vmips/safety-data-sheets/valbazen.pdf that obviously says to store as directed by product packaging.
Valbazen: I'd use it for my birds since there wasnt any direct sunlight. If it had been outside in the heat with direct sunlight and the bottle felt warm, I'd dispose of it. Same for the Corid.
 

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