Antidote
What it means
Meaning 1
A substance or treatment that counteracts a poison.
Reach for it when using the precise medical sense when a known toxic agent is involved
The clinic stores the antidote beside a card naming the exact dose.
Meaning 2
Something that counteracts an unwelcome condition or influence.
Reach for it when using a clear metaphor for effective relief or correction
Quiet conversation was a gentle antidote to the hectic day.