When my middle brother shared my mother's birth control pills with my youngest brother when we were children, one was 5 the other was 3. All medications were keep in a locked box above the refrigerator. The boys threw the box down several times to get into it.
The Emergency Room was busy that summer.
I guess my children are smarter than your brothers. Heehehee :p
My youngest drank quite a bit of Dimetapp (which will also sedate) when he was about 3. He thought it was grape juice. He also swallowed a mouthful of bleach once. He also chewed through a glow necklace and got the glowing liquid stuff in his mouth, eyes, up his nose. There was never a dull moment with him.
Sedation for younger kids would most likely be in a liquid form, not injected and not in pills that would have to be swallowed whole. Geez, Dimetapp and Benedryl can knock a kid out, it wouldn’t even have to be a prescription drug. I agree that some kids will eat pills. Many look like Redhots or Sweetarts to a kid. And if you have one like mine, they’ll try anything.