Does this contain CYA?

[Jameshtx]

Asking for a friend. Someone told my friend these tabs don’t have CYA. Is it the case?

 

[mknauss]

Trichlor -- that is chlorine bound to CYANURIC ACID -- CYA.

 

[Mdragger88]

Someone lied to them-
All Trichlor contains cya -
Here’s an example of how one of those tabs will effect my 27k gal pool once dissolved