Active Pharmaceutical Ingredient
What is API (Active Pharmaceutical Ingredient)?
API stands for Active Pharmaceutical Ingredient. The molecule in a drug that delivers the therapeutic effect. API-manufacturing water has the strictest purity requirements in pharma.
Related glossary terms
- FDA
The U.S. regulator that sets food-contact and drug-water purity standards. Hi-Tech residential and food-grade elements use FDA-listed materials.
- EHEDG
A European industry consortium that publishes hygienic design guidelines for food-contact equipment. The reference for sanitary RO trains in EU food plants.
- USP
The compendium that defines pharmaceutical-grade water specifications (Purified Water, Water for Injection). RO is a primary stage in any USP-water plant.