Out of date gastro guard

[ahlam1399]

Thought I would get more replies here, just checking my gastro guard supplies for this season and realised the two I have left go out of date this month, my horses first event is in April will these be ok to use or should I get some new ones?

أكثر... (http://www.horseandhound.co.uk/forums/showthread.php?759217-Out-of-date-gastro-guard&goto=newpost)