Advice regarding thiamine mega dosing

Hi guys,

I am planning to start taking thiamine in the form of TTFD with the potential of mega dosing as I suffer from many health issues as a result of taking fluoroquinolone (Ofloxacin) anti biotics and Flagyl (Metronidazole).

I am interested in taking Lipothiamine as it does not have a gelatin shell and it also has a small amount of ALA. If I start at 50mg and slowly increase the amount, would it be a bad thing that I would be taking a lot of ALA as well?

I have bought some magnesium glycinate as well to take at the same time.

I have seen people suggest taking b vitamins and potassium too, do I need to take these straight away in combination or not and how much would I need?

Thank you.