Answer
Some medications and familiar remedies from post-Soviet countries are difficult to find in Uruguay. Polysorb and Enterosgel are specifically mentioned: they may not be available in their usual form or may not be sold at all.
The problem is not necessarily a lack of treatment as such. Names, dosage forms, active ingredients, pharmacy practices, and the range of commonly used products often differ. What you bought without a second thought at home may have a different equivalent in Uruguay or may not be sold there.
Before moving, make a list of medications taken long term and household products your family is accustomed to. For critically important medicines, you need to know the active ingredient, dosage, and possible alternatives rather than relying only on the brand name from your home medicine cabinet.