Pharmaceutical Active Ingredients
The active pharmaceutical ingredient (API) is the part of any drug that produces the intended effects. Some drugs, such as combination therapies, have multiple active ingredients to treat different symptoms or act in different ways.
Every medicine is made up of two main ingredients — the chemically active active pharmaceutical ingredients and chemically inactive, excipients, which is a substance that delivers the effect of active pharma ingredient to one's system. Fixed-dose combination drugs use multiple APIs, while single-dose drugs like Crocin use just one API.
Production of active pharma ingredients has traditionally been done by the pharmaceutical companies themselves in their home countries. But in recent years many corporations have opted to send manufacturing overseas to cut costs. This has caused significant changes to how these drugs are regulated, with more rigorous guidelines and inspections put into place. Manufacturers use certain standards to determine how strong the API is in each drug. However, the standard can vary widely from one brand to another. Each brand might use different test methods, that can result in different potencies.
Below is a list of suppliers who provide Pharmaceutical Active Ingredients: