Title says it all.
Searching found an Argentine firm (Janssen) that imports the drug Stugeron (Cinnarazine) to Argentina, but I saw no information there or anywhere else about availability or restriction.
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Stugeron (and all the other brands of Cinnarazine) sell as "Venta bajo receta".
Which you'd guess means that it requires a prescription, but... it doesn't, unless you are trying to get your insurance to cover for it.
Drugs that say "Venta bajo receta archivada", on the other hand, do require a prescription in every case.