Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
1
Is any of this happening now?
Call 911
Call emergency services now for:
Trouble breathing, collapse, or loss of consciousness
A seizure, severe confusion, or inability to stay awake
An irregular heartbeat, chest pain, or severe weakness
Repeated vomiting, painful muscle spasms, or marked tingling
A large or unknown ingestion of a fluoride product
Any suspected hydrofluoric acid exposure
And for anyone, someone who:
is unconscious, or cannot be woken
you believe has taken an overdose or swallowed something poisonous
Other emergency signs, for anyone
Someone who is struggling to breathe, gasping, choking, or cannot get words out
Someone who has chest pain, tightness or pressure lasting more than a few minutes
Someone who has sudden weakness or drooping on one side of the face or body, slurred speech, or sudden confusion
Someone who is bleeding heavily and it will not stop with firm pressure
Someone who has had a seizure that will not stop, or does not wake up afterwards
Someone who has lips or skin that look pale, blue, grey or blotchy
2
Is any of this happening?
Be seen today
Contact a poison centre immediately after a potentially significant or unknown exposure, even if the person feels well.
Have the product label available if possible.
3
Does any of this apply?
Book an appointment
Arrange routine medical or dental review for white, brown, rough, or pitted enamel; persistent joint stiffness or bone pain; or concern about long-term exposure from water, supplements, or work.
These findings do not confirm fluoride toxicity by themselves.
And for anyone, someone who:
is having side effects from a medicine, or is struggling to take it as prescribed
Every sign above is quoted from the sofidex article on Fluoride overdose. If you are not sure, err upward — it is always reasonable to be checked.