I hope the Pepcid works for you! Another thing we do which might help too is to free feed. We leave dry food out with plenty of fresh water at all times. Using the free feeding method helps because a dog is less likely to "gulp" their food down all at once. Gulping food is dangerous and can cause bloat which can be fatal.
Buddy used to do that too after vomiting, but does not do it anymore. I think it is just a lack of O2 from the vomiting.
Have a Great Bully Day.
Member of The Bulldog Club of America, The Bulldog Club of Texas and French Bulldog Club of America.
Bully hugs from - BeBe, Hazel, Lucy Lu, JLO, Hillary, Henri & Katie