PBO:You could get from fine chemicals suppliers ,must mention the CAS number.
Here in Europe a lot of chemicals were withdrawn from commerce,and a lot of sad dangeros chemicals can just obtain if you have permission of different autorities.
(This Europe is too much complicated)
Here the infectologists do not heard of drug resistant parasites!!!They think that just animals are affected!
And say,that it's immposible to not cure a dose of mebendazole the parasites,if you are not healed,then you vere reinfected ...Take care of hygiene!and so on...
This doctors are not a DOCTOR HOUSE...