
Making new medicine is very hard. Most ideas fail. About 90 out of 100 medicines do not work. This costs a lot of money. A team uses a smart computer program. The program is called AI. AI means artificial intelligence. It helps find good molecules. A molecule is a tiny piece of stuff. The computer looks at many pieces. It picks the best ones fast. This step used to take years. Now it takes less time.
But finding a molecule is not enough. A medicine must be safe for people. It must work well. It must also reach the right part of the body. The body has defenses. These defenses fight new things. This makes medicine making hard. Many good molecules fail this test. The team must try again and again.
AI helps in many ways. It can see problems before they happen. It can test ideas faster. Doctors need better tools. AI gives them new hope. But more work is still needed. The job is not done yet.