I spent a whole morning asking around at various pharmacies in Pattaya for Testosterone Enentate or Testosterone Cypionate.
The result was that in most of them had Testoviron Depot (Bayer) 1 ampoule (prices from 250b to 290b) and some also had Rotexmedica Testosterone 20 ampoules (prices from 3500b to 4200b)
In a pharmacy on Soi Buakhao they had a catalog of Alpha-Pharma products, including Testobolin.
In another one on Second Road, they had a BD-PHARMA catalog, in which they showed me a 10ml vial (250mg/1ml) of enanthate.
I ended up buying the testosterone from Rotex at Tim's pharmacy for 3500b eventually because it was the most reliable but maybe try Alpha next time.