If you're giving it with food, always make sure to have a 'chaser' that you present right after the pill-containing food is in their mouth. Then they usually rush to swallow the pill so they can have the next bite of food.

My old dog who passed a year ago got to the point where he didn't want to eat much of anything, so we ended up using one of those plastic 'pill guns' that we could load with all his pills and just shoot them down his throat. I know that sounds a little rough, but it was a quick and painless process, much more so than trying to negotiate how to get 6-8 pills in him one at a time!

Best of luck.