Obviously, medicines are very dangerous for your pets because all of them contain acetaminophen like Tylenol; it can cause anemia in cats and liver damage in dogs. All of your meds should be hidden in a cabinet or a drawer that can’t be reached by your 4-legged friends.
Also, it is best to put them in a screw-top jar. If you ever dropped them on the floor, make sure to find them all before your pet does. God knows how easily they can be attracted to tiny and shiny pills.