Do a little internet research and provide three specific examples of medical uses of plants. Some possible examples include turmeric, aspirin, quinine, taxol, etc.

Turmeric: Turmeric contains a compound called curcumin, which has anti-inflammatory and antioxidant properties. It has been used in traditional Indian medicine for centuries to treat conditions like heartburn, diarrhea, stomach bloating, colds, fibromyalgia and depression. Recent studies have also suggested that it may have potential in treating diseases like Alzheimer's, cancer and arthritis.

Aspirin: Aspirin was originally derived from the bark of the willow tree. It has been used for thousands of years to reduce pain and inflammation. Today, it is used in modern medicine to treat a variety of conditions, including heart disease. The salicylic acid in aspirin helps prevent blood clots, reducing the risk of heart attacks and strokes.

Quinine: Quinine is a compound found in the bark of the cinchona tree. It has been used for centuries to treat malaria. Even today, it is used in some parts of the world for this purpose. Quinine works by killing the malaria parasite in the red blood cells. It is also used to treat nocturnal leg cramps in some cases.