Most people used http://www.medsmex.com
The Mexican site for the drugs for Blasto. I just had a look and see they are still available - Secnidazole as Secnidal and Furazolidone as Furoxone. Do you know the dosage? I can tell you. Am I allowed?
I got Iodoquinol and Doxyclycline from Skips Pharmacy West Coast USA. Looks as if that avenue has dried up