Pregnancy, breastfeeding and fertility while taking letrozole

Letrozole is not recommended when pregnant. This is because it affects your hormones and this can affect how your baby develops.

Talk to your doctor urgently if there is any chance that you could be pregnant.

Letrozole is not recommended while you're breastfeeding.

There's no information on how letrozole passes into breast milk but it's likely to be a fairly high amount compared to most other medicines.

Letrozole affects hormones, which may affect how your baby develops.

Letrozole is sometimes used as a fertility treatment. Your fertility specialist will be able to answer any questions that you may have when it is being used for this purpose.

Tell your doctor if you're:

• trying to get pregnant
• pregnant
• breastfeeding