Bloat can come back so hang on to any left over meds just in case, but always phone the vet to check- often if you just phone to say, my bloaty pig bloated again, should I give the same meds, they will say ok and bring them in if they dont improve or get worse in the next few hours. Puggle had 6 or 7 bloaty episodes about once a week after her first bad acute bloat attack, and it really helped having the meds there when it came on late saturday night/early sunday morning- that happened 3 times! After the 6th or 7th weekly bloat she got prescribed enough ranitidine to last 3 months just in case it was a permanent thing, but typical awkward piggy she hasnt bloated at all since then and can even eat coriander now which we think was the trigger food... I still have the ranitidine just in case though, and I'm always watching her when she has coriander or broccolli or one spinach leaf too many just in case!