As explained to K.Saijai, I already discussed with Thai FDA officer for approval the amendment of Tylenol 500 as your consideration. TFDA advise to approve this amendment prior or cancel it. If when they have the new announcement, you will submit to revise follow new announcement again. Furthermore, Thai FDA did not have the information for the new announcement ka.
However, we have grace period 6 months for this amendment after approval, If you still need to use the old version ka.