The best way to see Thailand is if you are visiting Thai friends.

They know what to avoid and keep you out of trouble.

In the matter of medications,

I suggest that you make out a list of your medications.
Give this list to your Thai friend. Have your Thai friend take that list to the local druggist.

The druggist can verify what's available and legal locally.
He can also suggest alternate medications, which you should discuss with your regular doctor. This of course is part of pre trip planning.

Special interest: Visit to the local fire department.

The fire department moved to a new location a little over a year ago.
They do have modern equipment, but also tend still depend on ancient equipment when needed.

These pictures where taken in 2003