How long has Benzetacil started to take effect?

How long after the injection of Benzetacil, does it begin to take effect? And is there a possibility that it will not work?
Expert answer:

Benzetacil begins to act once applied, but its effects are only noticed after several hours. The maximum effect of Benzetacil occurs between 24 and 48 hours after application.

Benzetacil may not do the desired effect, many bacteria are resistant to penicillin.