In 1945, in Guadalajara, Jalisco, a schoolteacher named Miguel Álvarez Ochoa identified a critical medical gap in Mexico: the near-total lack of medications specifically formulated for children. Driven by this need, he established a pharmaceutical company alongside a group of doctors and pharmacists, known today as PiSA, which initially began by producing children’s tablets.
By the 1950s, those same laboratories bottled a product recognized today as Electrolit. Rather than being created for athletes or hangovers, it was developed to combat severe dehydration in children during an era when diarrheal illness stood as one of the leading causes of mortality among Mexican youth.
Preceding Industry Giants: Gatorade was not created until 1965 by Dr. Robert Cade’s team at the University of Florida, meaning Electrolit was already being sold in Mexico years prior.
Beating Global Standards: The World Health Organization did not publish its global oral rehydration standard until 1975, whereas Electrolit was already on Mexican shelves before that standard existed.
Contextualizing the Innovation: While Álvarez Ochoa was a schoolteacher rather than a physician and did not invent the underlying science of oral rehydration therapy—which emerged later from research in India and Bangladesh—he successfully bottled the solution early and made it accessible to families without immediate hospital access.
Today, PiSA remains Mexican-owned and is led by his son, Carlos Álvarez Bermejillo. After crossing into the United States market in 2015, Electrolit now generates over $500 million annually in the U.S., successfully competing for shelf space against major brands like Gatorade, Powerade, and BodyArmor. What began as a humble children’s medicine created by a Guadalajara schoolteacher has transformed into a global hydration staple found in coolers worldwide.
