Oteracil Potassium NEW

Primary Application: Component of Combination Chemotherapy

Oteracil Potassium is one of the three active ingredients in a combination drug known as S-1 (brand names include Teysuno in Europe and TS-1 in Japan and Asia).

The S-1 combination is:

1. Tegafur: A prodrug that is converted in the body into 5-Fluorouracil (5-FU), a fundamental and potent chemotherapy agent.

2. Gimeracil: This component inhibits an enzyme that breaks down 5-FU, allowing the active drug to remain in the body longer and enhancing its anticancer effect.