I was giving it twice a day but the last box we collected from the vet said only once per day so I've been giving it in the evening. I'm not sure why the change in dose.
I have to confess that I had forgotten to give him the omaprazole the night before he was retching, although have missed a dose here or there before without any effects on him.
This morning he regurgitated a small amount of food 5 minutes after giving him his sildenafil liquid medication so I'm concerned that it didnlt absorb into his system, yet his breakfast has gone down as normal, will wait to see.