What to avoid while breastfeeding/chestfeeding.
Remember what you eat and drink can affect your milk. It's important to know what is safe for you and your baby.
Alcohol
It is best not to drink alcohol when you are breastfeeding/chestfeeding.
If you choose to drink alcohol, try to feed your baby before you have a drink. You can also wait for two to three hours after a drink before you breastfeed/chestfeed. Learn more about alcohol and breastfeeding/chestfeeding.
Drugs
Over-the-counter drugs. Pain medications such as acetaminophen (Tylenol) or ibuprofen (Motrin, Advil) are generally safe to use when breastfeeding/chestfeeding. Do not take more than the recommended dosage. Learn more about medicine use while breastfeeding/chestfeeding.
Prescription drugs. Always check with your doctor whether your prescription drugs are safe while breastfeeding/chestfeeding. For details on a specific drug, search the LactMed database.
Birth control pill. It is not recommended to take the pill as it contains estrogen, affecting your milk supply. Vaginal rings and patches should also be avoided. Safe forms of contraception include condoms, diaphragm or cap, and injections. Speak to your health care providers to see what's best for you. Learn more about breastfeeding/chestfeeding and birth control.
Illicit substances. Drugs such as cocaine can pass into your milk and even tiny amounts can have adverse effects on the baby.
Street drugs. Learn more about how street drugs can affect your baby.
Cannabis. Cannabis can be passed to babies through human milk. Tetrahydrocannabinol (THC) can be stored in the brain and fat cells of a baby. Cannabidiol (CBD) has also been found in human milk. Some research shows that cannabis in human milk can have an impact on motor and brain development. Learn more about cannabis use and breastfeeding/chestfeeding.
Smoking. Cigarette smoking is not recommended if you are breastfeeding/chestfeeding. Nicotine and other harmful ingredients in cigarettes pass through your milk and can affect your baby. Smoking can also reduce the amount of milk you produce. Even if you choose to continue smoking, it is still better to breastfeed/chestfeed than not. Learn more about the risks of second-hand smoking and ways to help you quit.