tallyho!
Following a strict mediterranean diet...
If its any consolation I believe both lost HOYS qualifications, The pony did also qualify at another show though so if they had membership of another society they may well still be at HOYS
I do feel a bit for the connections of the pony, they are decent people and it could be that they did not realise the problem, plenty of small ponies are given antihistamines primarily for itching or allergies (not sure why this particular pony was given it I'm not saying it has sweet itch or anything) and given a few days confined to a flimsy stable I can see why it may be given to a pony at a stay away show, it may be banned but I am one who would not think it would be on a banned list - that's no excuse for not checking but I would guess that's the reason why one punishment is more lenient than the other
The horse I think is an awful situation but again if they have (and I would say they definitely do) membership of other societies they will be back in the ring soon
In the great scheme of things not showing in NPS shows is not a big deal to some, there are plenty of other shows and that's why punishments like this are no real deterrent
Unfortunately cetirizine is well known for it's main side-effect - drowsiness.