NZ Formulary

Thiamine (tablet)

thy-ah-meen

What does it do?

Thiamine (also known as vitamin B1) increases the amount of vitamin B1 in your body.

How should you take it?

Take thiamine regularly as directed with a glass of water.

What if you forget a dose?

Take the missed dose as soon as possible. If it is close to the time for your next dose, skip the missed dose and carry on as normal. Do not take two doses at the same time.

Can you take other medicines?

Some medicines available without a prescription may react with thiamine including:

  • supplements that also contain thiamine (e.g. Centrum®)

Tell your pharmacist or doctor about all medicines or treatments that you may be taking, including vitamins, herbal products or recreational drugs.

What side effects might you notice?

Thiamine is unlikely to cause any side effects. If you notice any symptoms you are concerned about, discuss them with your doctor or pharmacist.

Other information:

  • Tell your doctor if you are pregnant, planning to become pregnant, or breastfeeding.