What is Tegafur, Gimeracil, and Oteracil?
How does S-1 work?
What types of cancer is S-1 used to treat?
What are the common side effects of S-1?
How is S-1 taken?
Are there any important precautions or interactions to be aware of?
How effective is S-1 in treating cancer?
What should I do if I experience severe side effects while taking S-1?