Chemical reactions are really important in making new medicines. Here’s how they help:

1. Making Active Ingredients:

   • More than 90% of all medicines need chemical reactions to be made properly.
   • For example, making Aspirin involves mixing salicylic acid and acetic anhydride in a reaction.

2. How Drugs Work Together:

   • Knowing about chemical reactions helps scientists understand how different drugs interact with each other.
   • It’s estimated that about 30% of drug failures happen because of bad reactions between medicines.

3. Testing for Quality:

   • Scientists use methods like High-Performance Liquid Chromatography (HPLC) to check the purity of medicines.
   • This testing makes sure that the final products are at least 95% pure.

All of these points show just how vital chemical reactions are in creating safe and effective medicines.