Here's the list of antibiotics that require prescription, it includes amoxicillin. http://www.cofepris.gob.mx/AZ/Docume...tibioticos.pdf

Anything else that is classified as an antibiotic will also be controlled even if it's not in the list. The pharmacy will probably keep the original prescription, so physicians that prescribe antibiotics along with other medication might write a prescription for the antibiotic and another prescription for the rest, in case the patient ends up buying them in different pharmacies.