[OwnedByJezebel]

I've used Sentinel on 4 dogs year-round with no adverse side affects. The have a 2-10 lb dosage, and it takes care of heartworm, fleas, roundworm, hookworm, and whipworm. It is a very tiny pill, I just stick it in a small amount of peanut butter and they lick it off a spoon, so it is very easy to give.