Who can and cannot take carbimazole

Most adults (aged 18 years old and over), children and babies can take carbimazole.

Carbimazole is not suitable for some people. To make sure it's safe for you, tell your doctor or pharmacist if you:

• have ever had an allergic reaction to carbimazole, other thyroid medicines like propylthiouracil or any other medicine
• have had severe pancreas problems (acute pancreatitis) after taking carbimazole in the past
• are receiving or are due to have radioactive iodine treatment for your overactive thyroid
• have liver problems
• have a problem with your blood
• have a swollen thyroid (goitre)
• cannot have regular blood tests
• are trying for a baby, pregnant or breastfeeding, or there's a chance you could get pregnant