Studies on breastfeeding and timolol have shown that the medication does pass through breast milk. If you are nursing an infant, make sure to talk to your healthcare provider before using either tablets or eyedrops, as the medication can lead to serious problems in your child, such as dangerously low heart rate or low blood pressure.
Is Timolol Safe for Breastfeeding Women?
Timolol (Betimol®, Blocadren®, Istalol®, Timoptic®) passes through breast milk in humans. It is a beta blocker medication that can affect the blood vessels and the heart, and could potentially cause problems in a nursing infant. Therefore, you should talk with your healthcare provider before taking timolol if you are breastfeeding or plan to start.
Research on Breastfeeding and Timolol
Studies have shown that timolol passes through breast milk, even if taken as an eyedrop. It is possible that serious problems, such as a dangerously low heart rate or low blood pressure, could occur in the nursing infant. Therefore, if your healthcare provider decides that it is okay for you to take timolol while breastfeeding, your baby should be monitored to make sure that no serious problems occur.
In general, taking the eyedrops is considered much safer for use while breastfeeding than taking the tablets. Using the eyedrops results in much lower amounts of timolol being passed through breast milk.
Talking With Your Healthcare Provider
You should talk with your healthcare provider about timolol and breastfeeding. Each woman's situation is different, and you and your healthcare provider understand your situation best. After considering what you want and expect, as well as your current health situation, the two of you can make a shared decision that is right for you.
Written by/reviewed by: Kristi Monson, PharmD;Arthur Schoenstadt, MD
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