• Nausea and vomiting
• Diarrhea
• Tiredness and lack of energy
• Decrease white and red blood cells, platelets
  To minimize infection risk, ensure personal hygiene and take adequate precautions e.g. avoiding crowded areas. 

Inform your doctor if any of the following occurs:

• Fever of 38°C or higher, sores in the mouth and throat 
• Sudden onset of cough or shortness of breath
• Chest pain or irregular heartbeat
• Unusual bleeding, bruising or black stools
• Severe diarrhea uncontrolled by anti-diarrheal medication e.g. more than 4 times/day
• Yellowing of the eyes or skin, dark tea-coloured urine and severe abdominal pain
• Skin rash or itch

• Use effective birth control during treatment and for 6 months after stopping TS-1®. Inform your doctor if you or your partner suspect or plan for pregnancy.
• Inform your doctor or pharmacist if you:
• Are taking other medication or supplements e.g. warfarin, phenytoin.
• Have any other medical conditions e.g. heart problems.

It is a capsule taken by mouth, twice daily after breakfast and dinner.
The dose given is based on your body weight and height. Take the exact number of capsules and follow the dosing schedule instructed by your doctor.

​If you miss a dose of TS-1®, take it as soon as you remember. However if it is too near to your next dose, skip the missed dose and go back to your usual dosing time. Do not double the dose.

​If you overdose on this medication, inform your doctor immediately.

​Do not crush, chew or open the capsules.

Keep away from children;#Keep in a cool, dry place, away from direct sunlight;#Store at room temperature;#