You would have to take a higher dose. I don't know which one, I'm a bad mathematician.
You would most likely vomit before you could drink the entire dose of nitrate.
There would also be much more unpleasant symptoms.
In general, nitrate should not be used as a substitute.
The probability of CTB is relatively low.
I do not recommend using sodium nitrate.
This is the information I managed to obtain on this subject.