The vomiting reflex is used to remove toxic material from the stomach before it is absorbed.
An overdose can cause vomiting.
An overdose must be removed from the stomach before it is absorbed.
What must be removed from the stomach before it is absorbed?

(1) hormones
(2) Proteins
(3) all liquids
(4) bacteria
(5) nutrients
(6) steroids
(7) an overdose
(8) Bodily water