...I am getting both 50g Diprosone and 60g Desonide (for my eczema; eczema that seems to have developed during my time working in the hot 120F jungles of the Mosquitia in Honduras & Nica in the latter part of my time there) in Canada for $6 to $7 a tube for years and years now...our drug plan is fabulous. Absolutely no need to buy questionable meds in 3rd World.
....the only items I had ever bought (in Latin America) were anti fungal, anti-malarial, antivenin and anti amoebic drugs (luckily, I never ended up taking any of these over a period of nearly a decade).
I seem to recall that Mexican pharma prescriptions where far and away more expensive (From Matamoros, to Mexico DF, to Oaxaca, to Chiapas) than Guatemalan, Honduran, Belizian, Salvadoran and Nicaraguan prescriptions (no prescriptions are needed whatsoever in these countries, with exception of rare meds). I was surprised to find several very large and very sophisticated pharmaceutical manufacturers near Guate City (on the western outskirts of the city). Costa Rica prescriptions were quite expensive (Costa Rica manufactures snake antivenin which I always source when based in the various Republics), and Panama's prescription meds (at least the ones I always carry just n case: anti malarials, etc) was also markedly more expensive...I think that prescription med consumer prices are set globally based on the relative prosperity of the population(s); and even set regionally within these countries (ie. poor 3rd World rural communities will have cheaper meds than more prosperous 3rd World city dispensaries).
....anyhow, just my experience.